Mark Ruffalo is more of a gay activist than YOU probably are—he doesn't even think he should be playing "Ned Weeks" in the movie version of The Normal Heart because a gay man should be doing it instead. He tells The Advocate:
"At what point did they finally let an African American play an African American? There comes a time in our culture when Marlon Brando shouldn’t be playing a Japanese guy. But the other way of thinking is that we should all be able to play whatever, and that’s sort of how Ryan approached me. More than anything, I wanted to know what Larry thought. Larry speaks his mind and doesn’t suffer fools kindly, God bless him, so I made it a point to make sure I was OKed by him. I’ve gotten to meet and talk to him, and he’s totally given me his blessing, which makes me feel better about moving forward."
On a lighter note, the interview ends with some talk of his chest hair that involves a reference to teenage girls...and I'm convinced he was remembering our conversation on this same, very oddball topic:
"...young girls are probably like, 'Ew, chest hair! I didn’t even know guys grew hair there.'"