Sub par

Rating: 3/10 (13 May 2018)

*** Warning, mild spoilers ahead ***
Ok, what sticks out about this movie? Nothing much.
The acting is lackluster. No character has a character arc - understandable because none of them are given any significant screen time. The whole movie is basically one endless 3-hour brawl (with some battle scenes blatantly ripped from Star Wars/Lord of the Rings). Some of the brawls are so over-the top that they are ludicrous (even by comicbook standards). Example: When you break a moon into pieces and hurl all of them at someone on the planet below within one second then the impacting pieces should not just make a puff of dust when they land.
The motivation of the villain makes no sense (after achieving his goal the universe will just be back to the earlier situation soon enough). Given that it's hard to emote with a villain in the first place having a full CGI villain makes it even less likely. Some of Gamoras mood swings in the matter where we're supposed to emote with him or her make even less sense.
Speaking of CGI: It's on a level we've come to expect with some weird exceptions. E.g. in one instance we see Bruce Banner's head in the open cockpit of the Hulkbuster armor while he's standing around in the background - and it looks like someone just copied it in with MS-Paint. Seriously. Not even Photoshop quality but MS-Paint.
The humor is relegated to one-liners and most don't land. The serious one-liners are predictable and pithy.
The music score is effective if somewhat over-the-top pathos-heavy (but that's not unusual for US films, so it' one of those things we've come to expect to have to endure)
The overwhelming feeling is that this movie was "designed by comittee". The boardroom idea seems to have been: "Take the things that people enjoyed in other movies and make them non-stop".
Problem is: It doesn't work that way. Gems in movies are that because they are rare. Taking the time to lead up to them makes the payoff all that sweeter.
After coming back I rewatched the first Avengers movie just to see if my memory deceived me. But no: It is a way, way, WAY superior film in every respect.