Finally Saw it last night. Oh my was it good. Often blockbuster films miss out on character development and interaction. But Whedon showed the world how to make a good, fun and well fleshed out super hero film. All of the characters had substance, we believed in their journey both together and personally. The humor was great especially Starks usual quips and Hulks brashness. Loki was the perfect villain for the film with his vunerability and genuine delsuional search for self value as he demonstrated in Thor.
All in all it's a fun, engaging and entertaining 2 and a 1/2 hours. And a must see for comic book fans.
But we knew that already!