The Greatest Show on Earth is a 1952 American drama film produced and directed by Cecil B. DeMille, shot in Technicolor, and released by Paramount Pictures. Set in the Ringling Bros. and Barnum & Bailey Circus, the film stars Betty Hutton and Cornel Wilde as trapeze artists competing for the center ring, and Charlton Heston as the circus manager running the show. James Stewart also stars in a supporting role as a mysterious clown who never removes his make-up, even between shows, while Dorothy Lamour and Gloria Grahame play supporting roles.
In addition to the film actors, the real Ringling Bros. and Barnum & Bailey's Circus' 1951 troupe appears in the film, with its complement of 1400 people, hundreds of animals, and 60 carloads of equipment and tents. The actors learned their respective circus roles and participated in the acts. The film's storyline is supported by lavish production values, actual circus acts, and documentary, behind-the-rings looks at the massive logistics effort which made big top circuses possible.