Based on Susanna Kaysen's account of being trapped in a mental institution in the late '60s, director James Mangold's "Girl, Interrupted" is a semi-involving tale of identity and belonging featuring a solid performance from Winona Ryder and a spirited, star-making turn from Angelina Jolie. Ryder stars as Susanna herself, an unhappy, upper-middle-class high school graduate uncertain about her place in American society circa 1967-68. While being moody, depressed and promiscuous might seem normal in the 1990s, in the late '60s, it's enough for Susanna's parents to seriously wonder about their daughter. After chasing a bottle of alcohol with a bottle of aspirin, the girl's psychiatrist immediately diagnoses her as a borderline personality and subsequently commits her to Claymoore Hospital. That's where the opening line of the movie comes in: "Maybe I was really crazy, maybe i