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.

Tuesday Weld is an American former actress. She began acting as a child and progressed to mature roles in the late 1950s. She won a Golden Globe Award for Most Promising Female Newcomer in 1960. Over the following decade, she established a career playing dramatic roles in films.