Rebel Without a Cause (1955)
Nicholas Ray's 1955 James Dean defining role. Chickie run, planetarium, foundation of every teen film since.
Sal Mineo was nominated twice, for Rebel Without a Cause at seventeen and Exodus, and played Plato in the first, a character generally read as the earliest gay teenager in a Hollywood film. He was murdered outside his apartment in 1976 at thirty-seven in a robbery unrelated to his private life.