There’s nothing like Brad Pitt getting down-and-dirty, when he sheds that well-loved pretty boy exterior for a meaty role that may not leave him looking stunning -- but will no doubt leave audiences stunned. That’s the kind of turn we’ll see Brad make this summer, in the Sean Penn-helmed The Tree of Life, in which Pitt plays an abusive father of three in 1950s America. And despite his proud papa persona, Brad admits that he did draw on his own experiences parenting six kids (with longtime loveAngelina Jolie) for the heavy-hitting film. "Not (like I'm) a horrible parent," he said. "But I've certainly made mistakes and had to make up for it." Gotta love a man who admits when he's wrong!