Mark Ruffalo made his directorial debut with the film Sympathy for Delicious, the story of a paralyzed homeless man who discovers the power of healing hands. So he becomes a rock star. The film opens April 29, and as a respectful closer to Ruffalo’s interview for Delicious, he addressed how he’s preparing to play Bruce Banner in The Avengers.

“We have to get the script,” Ruffalo said. “We’ve been working on the script which has been fun. I’ve lost 15 pounds. They don’t want me all ripped up but they want me to be lean and mean. Trying to get the psychology of somebody who knows at any moment they could literally tear the roof off of wherever they are. Trying to bring his, I don't know, something real to that and totally fantastic. Like I said, I’ve been working with Joss Whedon on the script with the rest of the cast and we start rehearsals soon. Hopefully we’ll have the mother of all comic book movies for you soon.”

He’ll be the third Hulk in 10 years. Don’t think that doesn’t give Ruffalo pause. “Yeah, man, are you kidding me? I’ve got some big shoes to fill. I kind of look at it as my generation’s Hamlet. We’re all going to get a shot at it.”

Ruffalo said he begins shooting The Avengers the first week in May.