'I'm Like a Catalyst'

Well, my guy--you think he might be a bad guy. Then you realize he is actually the good guy and Tom Cruise is the bad guy. Initially you think Tom Cruise could be a nice guy.

That's a real role reversal.

Yeah, it was cool to be part of something that's sort of historic.

Historic, huh?

It is-- a little. Tom's never done anything like that. And, "In the Cut" had that same kind of thing too [with Meg Ryan]. When an actor is going to do something they've never done before, they bring in Mark Ruffalo to co star. [laughs]

You know, that's not a bad niche to have.