The movie opens immediately following the stinger sequence featuring Baron Von Strucker, Quicksilver (Aaron Taylor-Johnson) and Scarlet Witch (Elizabeth Olsen)
Von Strucker, Scarlet Witch, and Quicksilver have a massive battle versus The Avengers
Von Strucker has a Chitauri ship and weapons
The Avengers win and have a party at Avengers Tower where everyone tries to pick up Mjolnir, including Rhodey
Captain America is able to move the hammer just a little bit
Jane Foster (Natalie Portman) and Thor are no longer together and she is dating Chris O'Dowd's character from THE DARK WORLD.
[In] the party scene at Avengers Tower, we discover that Banner and Black Widow kinda have a thing for each other. Banner is afraid to consummate anything with her for fear of hulking out and hurting her. He doesn't trust himself. OUCH! Talk about blue balls, in this case hulk green, hence leading to his "It's complicated" facebook status update this morning.
