I Walk the Line is a 1970 American neo noir drama film directed by John Frankenheimer and starring Gregory Peck and Tuesday Weld. It tells the story of Sheriff Henry Tawes (Peck) who develops a relationship with a girl in town, Alma McCain (Weld). The screenplay, written by Alvin Sargent, is an adaptation of Madison Jones' novel An Exile. The I Walk the Line soundtrack is by Johnny Cash; it features his 1956 hit song of the same name.