"I am in a scruffy linen suit that was bought directly out of a thrift store and I am looking around the room at these impeccable human specimens feeling like a tool and thinking, ‘What am I doing here?’” laughs the actor. “I felt a strange jealousy as I was looking at their cool outfits and strapping bodies. I was purposely told not to put on muscle for the role, so I was the pipsqueak. I longed to have my cool outfit and be part of the team and that is exactly how Bruce Banner is feeling as well. I was nervous because I had a lot of long scientific dialogue. I thought I knew the scene pretty well, but standing next to Sam Jackson and all of the other actors in the cast for the first time, I just kind of fell apart for the first few takes. Thank goodness Sam made a good joke about it, which put me at ease and I was fine after that."
- Mark Ruffalo on his first day with the entire cast (x