Splendor in the Grass is a 1961 Technicolor romantic drama film that tells a story of a teenage girl navigating her feelings of sexual repression, love, and heartbreak. Written by William Inge, who appears briefly as a Protestant clergyman and won an Oscar for his screenplay, the film was directed by Elia Kazan and features a score by jazz composer David Amram. Wikipedia
Bud: Deanie, you're a nice girl. Wilma Dean: I'm not. I'm not a nice girl.