Watch VoirFilms. Although he'd starred in just three films before his untimely death at age 24, James Dean cast a long shadow that came to define cool. Using excerpts from Dean's personal diaries, found footage from screen and wardrobe tests and interviews with those who knew him best (including Dennis Hopper, Dick Van Patten, Graham Nash and Rod Steiger), this fascinating documentary explores the screen icon's lingering mystique.