Hollywood look yes, the rest of the movie is wanting.

Rating: 5/10 (19 April 2015)

Not much more to add to my review's subject line.
I will add the following observations, which many reviewers have already commented on as follows.
I will try to generalize my observations without putting too much into the details, but just in case my remarks contain spoiler material, I have added the warning.
Character Development: The Vampires
I didn't think of this right at the get go before writing this review, however, it just dawned upon me. Where did the vampires come from? I mean, we find out how they attack the small Alaska town. Where bits and pieces of their attack are revealed by death and destruction to dogs, cell phones, and power stations. But, where is the scene of them waking up in a damp, moldy cave somewhere. Or perhaps some ritualistic chanting around a Gothic looking symbol which's purpose is to demonstrate it their "awakening" time of the millennium or something. Oh, wait, that would mean the cave would have to be somewhere in the area of the Alaskan town.
Hummm? That also means, how did these vampires survive in the cold and freezing environment prior to the event which causes them to descend upon this town? Wait, that would be a total story line glitch. Simple to fix, I suppose. Easy. Since this film is a modern time based era (cell phones at least right?) I contend the writer could have created perhaps, a global warming cause which, perhaps, melted some snow caps somewhere where these vampires actually were "frozen over" way before sometime in the past. This causes them to become "alive" and "eager for food - anywhere close by" Yea, that's the ticket (by the way, I retain my copyright to that plot line, ha ha.)
Okay, now we have some context as to how and why vampires exist, and why there, in this remote Alaskan town.
Next: Character Issues: the vampires
This is a small, but interesting observation I made watching the movie. Now, these Vampires seem very functional. That is, they have some wits about them.
Now, here is my problem. If they are that highly functional, why were they not concerned with their personal hygiene? They just left that slobbery all over themselves? Point made. Technical: Ability of the Vampire Infection to transfer to non- vampire humans - How, when, and why not from blood splatter to the face, mouth, or eyes? At the end, Josh Hartnett's character decides to feverishly look for a surgical needle from some first aid cabinet somewhere. He then takes out this perfectly clean package, opens it, and goes to one of the dead, infected, recently killed (by hatched decapitation, which blood splatter everywhere). Then, he takes the effort to extract some blood from the dead vampire using the syringe needle. This, mind you, is after he has killed several other vampires with the hatchet, and has blood splatter here and there, to include around the face. The ultimate result of the injection (of infected blood into the blood stream) is to start the process of vampirism (yes, I made up that word). Now, here is the problem, at the end, his girlfriend and he are sitting waiting for the sun to come up to do a vampire suicide thing. She gives him a kiss on the mouth. This should be enough to infect her, but it didn't. Maybe this is a sequel vehicle. Given that said, and generally. All throughout the movie, and during the instances of fighting off the vampires, there are very blood splattering scenes which would result in the same kind of cross infection. This didn't occur. Visually: Fine, the movie seems to accomplish the Hollywood look. Is that really hard to do with today's technology?
Character: Josh Hartnett's character as the "bad guy." This is a valid observation made by other critics. Kind of like Jake Gyllenhaal's character in Prince of Persia: The Sands of Time (2010). I didn't accept him as being the Russell Crowe bad ass, grungy killer dude. Okay, they did allow Hartnett to grow a beard. I found his brother's use of the axe, though tempered with fear, anxiety and fear, was more accepting than Hartnett's character doing the same violence.
Tools: Okay, lots of people got into how "helpless" the townspeople were when fighting off the vampires. Especially the use of the indoor Marijuana farm Sun Light. It totally worked when Hartnett's character used it, passively mind you, waiting for the evil vampire to enter the front door. There, Harnett's character stood, with the light pointed to the soon to be opened front door. Boom, the vampire enters, gets exposed to the light and instantly retreats.
The townspeople could have made a portable sun-light canon, using the generators and a vehicle to hunt down the vamps. By the way, where were all those powers Hartnett's character was supposed to acquire after the injection?
It appears he got his ass kicked most of the time, and there were no really displays of equal or super natural powers demonstrated during the fight between him and the king pin vampire guy. Oh yea, well, at the end there, he did punch a hole through his mouth. Kinda like Arnold Schwarzenegger does in the Terminator 1 (1984) during the opening scene when he punches through one of the street gang member's torso when trying to acquire their clothes.
So, for the Hollywood - visual impact - watchable up to 5. As far as the rest of the rating scale (6,7,8,9 & 10) those points are reserved for things which apparently, this movie is absent of.