The record for the longest-running film to ever win Best Picture belongs to 'Gone With the Wind' (1939). The film has a total runtime of approximately 238 minutes (nearly 4 hours), including its overture, intermission, and exit music. Because of its massive length, the film was often shown with a scheduled break for the audience—a luxury not common in modern cinemas. While films like 'Lawrence of Arabia' (222 minutes) and 'The Lord of the Rings: The Return of the King' (201 minutes) come close, 'Gone With the Wind' remains the undisputed heavyweight champion of Best Picture length, reflecting the era of the 'Mega-Epic' in Hollywood.