Sean Penn Takes Home Best Actor for Milk

"You, Commie, homo-loving sons of guns," Sean Penn said to laughs as he took to the stage to accept the Oscar for Best Actor in a Motion Picture for his work in the biopic Milk at Sunday's Academy Awards.

The outspoken activist won for playing an outspoken activist and, true to form, quickly changed his tone and took the opportunity to make a political statement in support of marriage equality.

"For those who saw the signs of hatred as our cars drove in tonight, I think it's a good time for those who voted for the ban against gay marriage to sit and reflect and anticipate their great shame and the great shame in their grandchildren's eyes if they continue that way of support," Penn said to a standing ovation. "We've got to have equal rights for everyone."

It was the second time Sunday evening that marriage equality took center stage. Milk scribe Dustin Lance Black won for Best Original Screenplay, and in an emotional speech , he said that learning about Harvey Milk as he was growing up gave him the hope that one day he might fall in love and get married.