Edit these into postive reviews?: - A significant issue with the movie is its lack of originality, as many scenes, characters, and ideas appear to be either clichéd or directly lifted from earlier movies. While it's true that this approach can be successful (as seen with the Star Wars and The Meg franchises, which drew plot inspiration from The Hidden Fortress and Jaws), in this case, they come across as empty and unsatisfying. Moreover, the overuse of clichés becomes repetitive and exhausting, leading to a sense of indifference among some fans towards the entire franchise.

According to an interview, it was revealed that the movie drew inspiration from a scene in the first installment where the protagonists traverse an ice cavern and glimpse a UFO encased in ice. This detail underscores the movie's lack of originality, suggesting that the moviemakers may have exhausted their ideas regarding the franchise.

It should be noted that the third movie was similarly based on a shot during the sequence in which a dinosaur is shown encased in ice. However, this one works since it does have to do with the ice age time period.
The recurring theme of Scrat chasing after his acorn has become worn and repetitive, particularly given its recurrence across the previous four installments, the audience has come to expect that Scrat's efforts will be fruitless, rendering the outcome somewhat predictable at this sort of juncture.

Some people or critics compare this to the Open Season, Despicable Me, and Hotel Transylvania franchise, but at least those three were executed in a much proper but appropriate way in comparison to the storyline in this one, since both of those three franchises changed their formula to try something new.
Like with the fourth movie, the movie does full-on exaggerates Scrat’s gags. At one point, he was SKINNED-ALIVE by the high gravity of the ship and fixed himself like it was nothing.
Unlike in the previous four installments, Scrat never loses his acorn in the ending nether it ends with him screaming in anger.
On a similar note, just like Shrek The Third and Cars 2, the sequel seems to have absolutely no impact on the franchise and feels very forgettable to many viewers. It can be better if one can watch the first three movies and just skip the fourth and fifth movie (as well as The Ice Age Adventures of Buck Wild) and nothing important will be excused.

Similar to Ralph Breaks the Internet and The Emoji Movie, the movie is plagued with numerous clichés that were commonly observed in other movies, some of the most notable examples include:

The subplot involving Manny centers on his emotional attachment to Peaches, which is so intense that he won't allow her to leave and explore. Additionally, he appears to harbor a dislike for Julian, her amiable and harmless fiancé, and refuses to engage in any activities related to him, which is similarly used of Hotel Transylvania, but in a bad way.
Overall, the movie falls into the cliché of the protagonists setting out to save the world from imminent destruction.
Moreover, it reiterates the storylines from the second and fourth installments, featuring the protagonists setting on an adventure, battling to survive a disastrous event, with the main protagonist, Sid, finding a romantic interest in this instance.
Manny not only embodies the "overly clingy father" cliché once again, but he also represents the "father who dislikes his daughter's boyfriend" trope.
A sequence towards the end of the first act centers on the "forgotten anniversary" cliché.
Peaches embodies the cliché of the mature character who yearns to explore the world.
Sid embodies the cliché of the "loser who ends up with the love interest."
Julian embodies the cliché of the "future son-in-law who is doing his utmost"
Buck embodies the "liar revealed" cliché.
Gavin, Gertie, and Roger all exemplify the cliché of the antagonist who is redeemed in the end.
The movie also incorporates the cliché of an "ominous and ancient prophecy foretelling an impending arrival."
The final, and perhaps most significant, cliché is the "ending with a party where everyone dances to a song.", which this kind of ending was later seen in The Emoji Movie.
On a similar note with the cliches, the use of the aforementioned "forgotten anniversary" cliché feels rather forced and doesn’t fit the movie whatsoever, as it is supposed to set up something so important when it comes to Manny and Ellie, but its payoff — during their reflection on themselves raising Peaches and coming to terms with her future — ends up being not too satisfying nor important.
The use of the "liar revealed" cliché runs into a similar issue as it barely changes nor develops it’s characters nor even moves the plot moving forward; to recap, during the travel, Buck discovers he is being followed by the Dino-Birds and is hiding this from the others, and before they arrive at Geotopia, the others, particularly Diego, discover what is really going on and realize that Buck was being dishonest about this and was keeping his secret from spelling it out to the herd; one would think this would set up some sort of conflict between Buck and the others, but this is not paid off in any real major way whatsoever.
Similar to Rio 2 and Shrek the Third, the plot tends to be rather predictable, as it is obvious the herd will succeed in preventing the asteroid from hitting the Earth and eradicating the lifeforms; thus, it becomes a bit difficult to become easily invested in the plot due to its outcome being quite obvious for some viewers.

While the animation is colorful and not bad in general, it may have the weakest and weirdest animation in the franchise, and the animation can be over the top with some characters moving a bit too fast in specific scenes and usually acts and feels as though it is the kind of animation style used in the production of a Open Season movie; this is also even more weirder when taking into consideration as to how most of the background mammals in the previous four moved quite similarly to those of mammals in real life.

On a similar note, there is an overuse of disgustingly lazy purple color filters and schemes throughout the movie, notably inside the UFO, scenes set during the evening, on the asteroid and its pieces themselves, and even inside Geotopia.
The movie follows up on one of the flaws the previous movie suffered from in that it scarcely feels like an Ice Age movie at times, mainly due to its usage of scenarios which feel rather out-of-place in an Ice Age movie. In fact, it feels more like an entirely different movie, but it happens to have characters and backgrounds from the franchise.
Similar with Ralph Breaks the Internet, the movie feels the apparent "need" to be hip and cool kind of humor in the strangest way you can imagine; this is obvious in scenes with dated references to modern popular culture, some of the most blatant examples include Crash and Eddie constantly referencing hashtags in one scene, as well as Francine criticizing Sid for looking "nothing like [his] profile picture", which feels very outdated even for a movie regarding prehistoric animals.

The movie also features a rather odd but questionable cameo from Neil DeGrasse Tyson (the first one being a narration in the opening scene), who also literally serves as a scientific consultant... for an Ice Age movie.
The pillar itself which describes prophecies, alongside UFOs, magical crystals that grant eternal youth, and other sci-fi and fantasy elements all feel rather out-of-place for a franchise regarding prehistoric animals; this would essentially be what would happen if there were taken from a Urban Jungle or a Futurama episode in which the protagonists embark on an adventure to outer space of all things.

Granted, there were other sequels like The Lego Movie 2: The Second Part that made the protagonists embark on a journey to outer space, but that movie was executed properly as it was set in the modern day era and not during the prehistoric era, unlike this one. They could have at least titled it a much better name that would actually fit the space period like Ice Age: Space Journey instead of Ice Age: Collision Course.
On that same note, one could argue that there was a shot in the first movie where a UFO is shown encased in ice, but this was not exactly a major focus of the said movie and seemed to be more of an in-joke, and even then none of the previous movies had storylines that were majorly either sci-fi themed or fantasy themed.
Similar with Escape from Planet Earth, there is a presence of out-of-place stock sound effects throughout the movie, the most notable example of this being when stock "squawking" sound effects are randomly used into a brief scene where a series of asteroids annihilate a flock of birds during the climax.

Similar with the previous movie, some of the song choices are rather questionable for an Ice Age movie, and it feels like they were putted in the wrong context, with the most blatant examples including Fireball by Pitbull briefly playing during the first interaction in the movie between Buck and the Herd, as well as Dream Weaver by Gary Wright playing when Brooke meets Sid for the first time, and most notably Can’t Hold Us by Macklemore, which was played in a few trailers, which those songs don’t have to do anything with the movie.

The movie has easily some of the worst pacing compared to the previous four installments as some scenes tend to drag on forever, end too early, or suffer from botched timing.

Similar with the same issue with The Angry Birds Movie, there are specific scenes are rather futile and seem to only serve to pad out the pacing, as neither of them serves any real purpose at all nor even explores the relationships between characters in a way it pays off story-wise; one example is the small subplot of Diego and Shira wanting to raise youngsters, which does nothing to move the plot forward and seems to be only there for the sake of having both characters actually getting to do something in the movie.
Even the side of the plot with Scrat falls prey to this, with some of his individual scenes seemingly being longer than in the previous four, seemingly for the sake of padding out the pacing.
The pacing during the travel is pretty inconsistent at times, with the moviemakers seemingly being unable to decide as to how fast or slow the travel should progress; most of the time the travel seems to be set at a rather "normal" speed, but at various points, its pace is slowed down due to filler and rather failed attempts at humor.
Anachronism: In the scene where Crash and Eddie are in Buck's mind, there is literally a robot version of the latter... even though robots are pretty much non-existent in the time period the franchise takes place, especially considering how no such human technology existed yet in the Pleistocene; it is also even more bizarre when taking into consideration as to how prehistoric animals should be unfamiliar with technology such as robots for obvious reasons, doesn’t that seem awfully similar?

The movie feels rather overstuffed when it comes to its main and minor characters, and as a result, the plot constantly has to sidetrack with subplots that add nothing.

Similar to the same situation with the fourth installment or Shrek the Third, this movie is very saturated when it comes to subplots, since it has not four or six but twenty three subplots all in one movie, the most unfortunate thing is that it juggles each one of them, that at the end of all only two subplots are executed properly, these subplots include:
Manny and the others seeking to stop the asteroid.
Scrat embarking his journey through space in search of the acorn.
Sid being depressed about having a girlfriend.
Manny and Ellie with their dilemma with Peaches getting married.
The relationship between Peaches and Julian.
Julian trying to befriend Manny.
Julian's relationship with the herd.
Diego and Shira looking forward to raise children.
Sid's romance and relationship with Brooke.
The herd celebrates the anniversary of Manny and Ellie.
Manny forgetting his anniversary with Ellie.
Buck trying to stop the prophecy from coming true.
Buck leading the herd to the volcano.
The herd seeking to purloin the pink crystals.
Buck tending his pumpkin daughter.
Buck with his existential trans on how to avoid the asteroid.
The Dinobirds seeking revenge on Buck.
Buck preventing the herd from knowing that the Dinobirds looking for him.
Shangri Llama and the inhabitants of Geotopia refusing to save the world.
The secret of Geotopia's Fountain of Youth.
The Shangri Llama and the inhabitants surrendering.
Granny’s affair with Teddy.
The Dinobirds saving themselves from the asteroid and Roger's insecurity about being antagonistic.
In fact, one scene shows Sid running out of fingers when he counts everyone to ensure they are present even takes a jab at the movie's huge list of characters.
Also, the subplot involving the relationship between Sid and Brooke feels rather rushed; this is clear when Brooke proposes to Sid, even though they have only known each other for only twelve minutes and thus barely had any chemistry. Take the fourth installment for example, where Diego and Shira's romance sub-plot was well-written and natural, thus creating great chemistry between the two, despite it being pointless to the plot of that movie.
The characters are even more intolerable and way worse than they were in the fourth movie, each of them having their own set of issues, including, but not limited to:

Scrat has been derailed tremendously as a character altogether as he seems to be the antagonist (it should be noted that an character does not necessarily need to be that antagonistic in the first place, as an antagonist is typically a character or force that opposes a protagonist, basically the situation that causes the conflict) as he is not only responsible for his mistakes, but also causes a storm on Jupiter to end up on the Earth, pushes the asteroid headed towards the Earth further during his attempt to return and accidentally eradicates life on Mars; this could be compared to his actions in the previous movie, but at least that did not have the potential to eradicate all of the lifeforms on Earth.
In addition, the scale of his antics is upped to such an absurd degree his comedic nature has been tarnished and he is also affirmed as the animal equivalent of God, the latter of which is mainly due to how he is guilty for the creation of the entire Solar System; in fact, his antics seem to be even more over-the-top and absurd in comparison to especially in the fourth movie.
Manny has been reduced from a slightly standoffish, lovable, but cranky mammoth to a completely overly protective father; basically, he has been derailed as a character, he even said this infamously absurd quote: “Ooh. I know! We destroyed the relationship, right? That we never have to let her go and she'll just stay our little girl FOREVER” while sadistically laughing like a lunatic, almost behaving like a complete clone of Surly Squirrel, even Ellie points that out, the way he acted to Julian was also absurd and senseless at the same time, considering that he already reconciled with Peaches and accepts the fact that she wants to be independent, Thankfully, he reverted back to his former personality in the sixth movie.
Sid is also flanderized similarly to in the fourth movie, his idiocy and moronic nature having been exaggerated in comparison to in the first four installments, also, his characterization got even more absurd in the following installment.
Ellie acts completely out of character since, instead of being Manny's voice of reason and Peaches' sweet mother who accepts and supports her desire to explore and meet new faces as she was in the previous installments, she was flanderized into a manipulative mother who lacks any interesting characterizations by simply siding with Manny on his overly-clingy attitude towards Peaches, and at another to set up the forced "forgotten anniversary" plot point that is resolved as quickly as it shows up. Thankfully, like Manny, she reverts back to her original personality in the sixth movie.
Several recurring characters, especially Diego and Shira, both of whom were major characters in the previous four, while still likable and have not been derailed, are heavily sidelined and barely do anything to move the plot forwards; the underutilization of Diego is even more insulting because Diego was one of the original main protagonists of the franchise.
Crash and Eddie are both very annoying and behave way more worsen than they were in the previous movie, as most of their scenes consist of them spelling out atrocious dialogue and rather notorious attempts at humor; they hardly even work off of the other members of the herd properly. While Crash and Eddie were meant to annoy the other characters with their pranks and intelligence, their annoyance wasn't exaggerated in the second and third installment, not to mention that they were at least good friends, as they cared about Ellie and the main trio and always helped them out when they could. But in the fourth movie and here, it seems like the movie viewers are the target of the possums' annoyance rather them the other characters, making them unbearable, not to mention they are useless since instead of worrying about their friends and the possible casualties by the asteroid, they don't seem care for anyone, not even themselves, they are having fun with the destruction caused by the asteroid. Their idiocy was also exaggerated, making the two look like the Ice Age equivalent of Surly Squirrel from The Nut Job, Even Sean William Scott's and Josh Peck's performances comes across as annoying as, while they still do good jobs as always, for some reason, they put in a much goofier register to their voices and even uses their southern accents and higher pitches, which is more irritating than funny. Thankfully, they started to become less like Surly Squirrel in The Ice Age Adventures of Buck Wild.
Peaches, while likable and much more mature than in the previous installment, can get annoying at times because of how much she complains about the possibility of not surviving to marry Julian and live her life, even though it's kinda understandable since that is a very unnerving thought.
Granny has been also been derailed, as she went from a crazy but conscious grandma that genuinely loved Sid and cared about her friends to just a senile old lady. At one point, after the Herd got out of a thunderstorm, she doesn't even care about Buck possibly dying when he came back to rescue a baby pumpkin of his, easily moving on from it.
Buck went from a fun and enjoyable weasel to one of the most intolerable characters in the whole franchise. Thus, he was also derailing his crazy attitude to a ridiculous level, although, in his other appearances, he was crazy, it was not as extreme as in the movie, to make matters worse, all of his charm that he had in the third movie is lost only leaving his exaggerated crazy attitude as if that were his entire personality.
Continuing with the subject, his sense of humor only works when he's in the Lost World; his humor when he comes to the ice surface is quite out-of-place and forced, In fact, He and Crash and Eddie provide some of most notorious jokes in the movie.
He along with Scrat is responsible for making the movie more wacky than realistic to the point that it makes no sense, such as, for example, why does a prehistoric weasel know about astronomy and even has a robot inside his subconscious?
He has so much relevance in the movie that it seems as if he is the protagonist of the movie since he acts as the leader of The Herd, making you question if the protagonist is him or Manny.
Some of his dialogue is nothing but very laughable, such as "That, however, is a turd."
He even embodies the "liar revealed" cliché being that he had to hide that the trip was an escape from the Dino Birds and has no real impact on his development.
Some of his subplots like his "existential crisis" and the "baby pumpkin" are some of the subplots that lengthen the pacing and do nothing beyond artificially making the movie boring and very forgettable.
The new characters introduced in the movie barely have any personality, are forgettable, unfunny, annoying, and one-dimensional, in the cases of Brooke, Shangri Llama, and Julian; in addition, Francine, and the Dino-Birds, whom never receive a proper introduction as to how they came into the movie without no explanation; we just randomly start off with them from beginning to end (though, in the case of Francine, who breaks up with Sid in her only scene and afterward is never seen again), as if she just came out of thin air, which is pretty jarring.
Shangri Llama is a boring and unnecessary character who also never had a proper introduction to how he came into the movie.
First of all, he's an annoying character who only talks about yoga and nothing else.
He acted selfishly as he refused to cooperate with The Herd because he wanted to maintain his youth.
For someone who practices yoga, he also has anger issues at times such as when he overreacted when Sid (accidentally) destroyed Geotopia.
He ignored the threat that the asteroid represented to the point of changing the subject to talking about yoga.
He twerked twice when disguised as yoga poses and prompted Manny, Sid, and Diego to do the same, although not as bad as the twerking in Rumble and Norm of the North, which is a another 2016 movie.
Although its design is ample to look at, it can look a bit strange with him having these ram like horns in his head unlike his real life counterpart, and why would a llama have horns?
His voice can sound very annoying sometimes, especially when he yells or screams.
Although the posters made him look like someone important in the plot, he does not appear until the last act turning out to be another case of false advertising.
It gets worse because he has a very short appearance and is even shorter in the climax.
Although he redeemed himself in the end, it feels like he did it more out of obligation.
The Dino-Birds (Gavin, Gertie, and Roger) are forgettable antagonists with pretty lame motives, consisting of them intending to fly out of range as high into the atmosphere as possible as the asteroid hits and eradicates all other lifeforms, making it impossible to take them seriously when the audience knows their own idiocy is only going to result in their casualties, and even if they do survive the initial collision there would barely be any food for them to eat, which would result in them starving to death; in fact, the presence of a real antagonist is rendered redundant by the fact that the asteroid is basically the main centric threat of the movie, as they are nowhere near as memorable compared to Soto, The Lone Gunslinger, Rudy, Captain Gutt, and especially Orson, who were far more developed and had way better motives than them.
Their motives are unconvincing, merely involving flying as high as possible in the atmosphere to evade the asteroid threatening Earth. This is unrealistic because, even at such altitudes, they could still perish from the impact. Survival would also pose the challenge of securing food supplies. Moreover, Gavin's assertion that Earth could become a paradise post-asteroid is contradictory, given the asteroid's lethal nature.
Gavin is supposed to be the father of the trio, but there are instances where he is so ruthless that he only cares about getting revenge on Buck instead of stopping the asteroid. Did he not realize what would happen if the asteroid hit Earth?
Throughout the movie, Gavin and Gertie mistreat Roger for his rationality, which sets him apart from the rest of the family, at least until the end. This essentially amounts to neglecting their own relative over differing viewpoints. Consequently, Gavin shows a preference for Gertie over Roger.
In a particular scene of the movie, Gertie displays his snotty behavior towards Gavin simply because Roger has abducted a mammal. Although Roger's mission was to capture Buck and he mistakenly took Granny, Gertie still ends up being rewarded. This portrays her as craving attention in that moment.
Their redemption arc, where they team up with the main herd to divert the asteroid feels rushed, cliched, and forced.
Gavin appears to have an inflated ego, perceiving himself as a clever and competent dino-bird, contrary to the narrative's portrayal.
Like the other new characters in the movie, they are underdeveloped and lack a proper introduction to their roles in the lives of the other characters, it seems as though they were hastily added at the last moment.
In fact, even Scrat has been more antagonistic than them in causing the asteroid to hit the earth.
One of the newer characters, Julian, is basically the proboscidean equivalent of Johnny from the Hotel Transylvania franchise, but without any of Johnny's likability and charisma. Even Adam DeVine, although he does a good job, seems to be trying to impersonate Andy Samberg's performance. And on top of the fact that he never received a proper introduction on how he became part of the plot, a lot similar with Shank from Ralph Breaks the Internet.
First of all, Julian is introduced out of nowhere as if the viewers already knew him before instead of introducing him, which causes nothing to be known about him.
Outside of being Peaches' love interest and being positive about everything, Julian lacks any kind of personality making him another case of a bland love interest.
His existence makes the love triangle of Peaches, Louis, and Ethan in the previous installment a total nonsense since neither of the last two stayed with her.
There are times where his positive attitude about everything becomes cloyingly annoying.
He can be a bit idiotic at times, such as the scene where he almost gives Ellie flowers when he was going to give them to Peaches.
He embodies into the "future son-in-law who is trying his best" cliché.
In the Latin American dub, he was played by German Garmendia, the problem with that is that it feels more like he's the proboscidean version of German Garmendia than anything else, also, his voice sounds like he's congested.
At one point, Buck and the others come across a river, and at no point does anyone think it to be a good idea to cross it, to the point where Buck literally demands said river to "let his mammals pass". Of course, it's just a reference to the story of Moses, but it paints its characters in a really questionable fashion.
Plot hole: In one scene, Scrat causes the internal gravity of the UFO to decrease, inadvertently flattening him and rendering it impossible for him to do specific actions such as jumping, and the next time he is shown the gravity of the UFO has somehow returned to normal without any explanation why.

Similar to the humor in The Boss Baby: Family Business and Shrek the Third, most of humor fail and either come across as stale, unfunny, or suffer from botched timing; some even remove suspense and tension, since it barely seems to take itself seriously; Crash and Eddie provide some of the most notorious attempts at humor here, consisting of gross-out.

On a similar note with gross out humor, there is even one scene where actual animal droppings are shown, which Eddie almost licks under the bottom that it’s a clue for something until Buck points out otherwise, which makes this scene just as bad as the Mighty Eagle urinating scene from The Angry Birds Movie and possibly the Gangnam Style scene from The Nut Job, except more worse.
False advertising for three reasons:

Some posters features Scrat on the moon and him wearing a spacesuit, but in the movie however, he is only seen wearing the suit in three scenes and that’s it.
Despite being heavily advertised on the posters, neither Brooke nor Shangri Llama appear until the second half of the movie and even then aren't even given proper screen time nor characterization.
Even the back-cover of the Blu-ray and DVD claims it the best Ice Age movie when it's really not.
There are several cringe-worthy, awkward and inappropriate shots being shown in a few scenes, such as one where the low internal gravity of the UFO causes Scrat's skin to fall off and thus expose his skeleton right before he pulls it back up, as well as another in which he lifts up his skin to reveal his nipples have been briefly transformed into acorns, which is extremely inappropriate and unacceptable for a PG rated movie.

The movie does share the issue of the previous four installments featuring prehistoric inaccuracies; an example of this is that Buck remarks how an asteroid would hit the Earth every 100 million years as if it were some sort of tradition, even though the asteroid that killed all of the non-avian dinosaurs hit around 65 million years ago, while the prior mass extinctions weren't caused by (an) asteroid(s) hitting the Earth.

Another inaccuracy is that the Dinobirds can fly for some reason, which is not accurate since both Gavin, Gertie, and Roger are Dromaeosaurs and don’t fly in real life.
Extremely dumb dialogue, particularly Buck's infamous, "That, however, is a turd!" quote.

Several characters from the previous four, specifically Rudy and Ethan, no longer seem to even exist anymore without any given reason whatsoever as to why; it feels jarring and questionable.

Similarly, Louis from the fourth movie is reduced to nothing more than a cameo who barely appears in two shots, probably due to his actor, Josh Gad, was busy with other movies during that time, such as The Angry Birds Movie, which came out two months before this one came out.
Ethan's absence is also partially understandable due to probably due to Drake focusing more on the music industry.
John Debney's soundtrack, while decent, is the weakest in the franchise, being inferior to that of the previous four movies.

In a similar manner to how other bad or terrible animated movies such as Shrek the Third, Sausage Party, Cars 2, The Boss Baby: Family Business, Ralph Breaks the Internet, Hotel Transylvania 4, and The Emoji Movie negatively affected their respective franchises or studios, this sequel heavily damaged the reputation of both the Ice Age franchise and Blue Sky Studios. As solidified Blue Sky's reputation as a studio that was unable to let go of the Ice Age franchise due to how much money the previous four made after release. And this resulted in the company as a whole becoming widely unable to be taken seriously as a major animation studio by a large number of people (as great as the studio truly was despite a large amount of Ice Age made media they made), but it wasn’t until the release of Ferdinand managed to save Blue Sky Studios’s reputation from further downfall.