Mark Ruffalo talks Hulk

On His Interpretation Of Bruce Banner: I think Banner's aging and living with this thing since -- now it's been two years since his last "one." We're kind of going for this world weariness of accepting -- trying to get to the point where he can live with it, and maybe master it. Come to peace with it. And so there's this kind of nice ironic wryness to Banner. He's not sulking and miserable, you know. I think that's sort of a throwback -- we had talked about it being a throwback to Bill Bixby, which was the Banner that I grew up on basically. He had kind of a charm about him, and this world weariness. He was on the run, but he was still able to flirt sometimes and smile sometimes, and occasionally he'd crack a joke.
On Whether The Hulk Talks And If It's Ruffalo's Voice: He Does. As of this moment, I am. But you never know what they're going to do. They might watch it and go, "Oh my god!" Yeah, he's a smart Hulk. He hasn't graduated to that yet, but hopefully he might be on the way to that. I don't know where it's gonna go after this, but there's definitely -- I feel like we're trying to open the door to integration of the two. I liken it [to] the guy who tried to break a bucking Bronco. He has some tiny little semblance of control of it, but then again it's completely out of control. That's what the last one left off, I felt like.
On Whether The History Between Bruce Banner And The Super Solider Serum/Captain America Is Explored: We don't really get to see that moment. We kind of hop over that, but there is a history there.
On Whether He'd Be Interested In A Solo Hulk Movie: Why not! It was the one character -- you know, I was a comic book fan when I was a kid and I always loved the Hulk. When The Incredible Hulk, that show, came on, I would not miss that. And so if I was going to find myself in that world, this would be the guy that I would be most interested in doing. To make a very short answer long: Yeah, I'd love to have him do his own movie.
On What He Thinks About 3D: Um, fad? A cool fad? I don't know, I'm into this whole 4D thing -- have you heard about 4D? That sounds cool for this kind of movie. I don't know, it's fun to watch a 3D movie, but I don't know. I have no idea what's gonna happen with 3D. It seems to be like every few years we roll up something like Smell-O-Rama...