I saw the movie in IMAX 3D, mainly because my boyfriend wanted to do so. I'm not a huge fan of 3D...It equates to explosions in movies, for me. Also, it's pretty gimmicky and although it's cool at first, after a while it's kind of dulling to the mind and your brain doesn't appreciate it nearly as much about 20 minutes into the film. But...that's a subject I could wax on for a while and I won't get into it too much right now.
(In case you're wondering what those two lines are -- because I was curious about it and looked it up -- it's Storm's line: "Do you know what happens to a toad when it's struck by lightning? The same thing that happens to everything else" and Wolverine's exchange with Cyclops where he calls him a dick.)
I had serious reservations about Black Widow being in this movie, admittedly. Especially after seeing her in some of the trailers...
Admittedly, Johansson is smoking hot in her fighting scenes and she had me fully convinced there. Not so much in her speaking roles. I was never quite convinced of her hardened past and her interrogation scenes had me a bit confused.
Another thing I thought rather (unintentionally) funny was the fact that the big cheesy explosions that were prevalent in Captain America apparently followed Chris Evans/Steve Rogers to this movie as well:
There weren't any surprises in the storyline and I could have used a bit more depth in character/plot, but overall I thought they did a fair job juggling the multiple story arcs that came from the previous Marvel movies. There were a few minor deviants from the original comics, but nothing to rock the boat. Furthermore, the set was incredible and I really enjoyed all of the mayhem. The great thing about having a bunch of superheroes all together is the fact that they can take/give more of a beating. Some of the fighting scenes were a joy to behold.
Bottom line: Fun, though juvenile at times. Plenty of moments to cheer, great to watch with a good crowd.