Girl Interrupted (1999)

From NetFlix: Diagnosed with borderline personality disorder, Susanna Kaysen (Winona Ryder) gets sent to a mental institution for a short stay. Instead, Susanna spends the next year avoiding her fears, descending into the skewed world of people who belong on the inside -- including the seductive, dangerous Lisa (Oscar winner Angelina Jolie). If Susanna wants independence, she must face her fears. An evocative drama based on a true story. 1999, 127 minutes