In “Silver Linings Playbook,” Jennifer Lawrence plays Tiffany, a young widow who attempts to mute her grief by sleeping with everyone at her job—yes, the women, too. As she describes herself in her unfiltered way, “Yes, I’m Tommy’s crazy whore widow minus the whore thing sometimes.” She builds a tenuous friendship with Pat (Bradley Cooper), a former teacher fresh off a stint in a mental institution, and at one point he throws her past back in her face. Rather than wilt, she gets into his face and says, “There’s always going to be part of me that’s sloppy and dirty, but I like that. Can you say the same thing about yourself?”