Badlands is a 1973 film directed by Terrence Malick from his own script, starring Martin Sheen and Sissy Spacek. Warren Oates and Ramon Bieri are also featured. Malick has a small speaking part although he does not receive an acting credit.

The story, though fictional, is loosely based on the real-life murder spree of Charles Starkweather and his girlfriend, Caril Ann Fugate, in 1957.[1]

Indexed at Wikipedia.