Fat Man and Little Boy
Assigned to oversee the development of the atomic bomb, Gen. Leslie Groves is a stern military man determined to have the project go according to plan. He selects J. Robert Oppenheimer as the key scientist on the top-secret operation, but the two men clash fiercely on a number of issues. Despite their frequent conflicts, Groves and Oppenheimer ultimately push ahead with two bomb designs — the bigger "Fat Man" and the more streamlined "Little Boy."
Ratings
Based on audience scoresWhere to stream Fat Man and Little Boy
Streaming now in the United States on Kanopy.
Rent or buy in the United States on Amazon Video, Apple TV Store, Google Play Movies, and Fandango At Home.
Trailer
Fat Man and Little Boy (1989), 35mm film trailer, scope 2.36:1, 4K trichromy, 3840x1624
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Frequently asked questions about Fat Man and Little Boy
Where can I watch Fat Man and Little Boy in the United States?
Fat Man and Little Boy is available to stream on Kanopy in the United States, and to rent or buy on Amazon Video, Apple TV Store, Google Play Movies, and Fandango At Home. Streaming availability is provided by JustWatch and can change over time.
Can I watch Fat Man and Little Boy for free?
Fat Man and Little Boy streams free with ads in the United States on Kanopy. A subscription is not required, though the service may ask you to register.
What are the ratings for Fat Man and Little Boy?
Fat Man and Little Boy scores 6.2 on The Movie Database.
Who stars in Fat Man and Little Boy?
Fat Man and Little Boy stars Paul Newman, Dwight Schultz, Bonnie Bedelia, John Cusack, and Laura Dern. Roland Joffé is the director.
How long is Fat Man and Little Boy?
Fat Man and Little Boy runs 2h 7m (127 minutes).
When did Fat Man and Little Boy come out?
Fat Man and Little Boy was released on October 20, 1989.
Which studio made Fat Man and Little Boy?
Fat Man and Little Boy was produced by Paramount Pictures and Lightmotive in the United Kingdom and the United States.
Ratings and streaming availability are aggregated from third-party sources; metadata from The Movie Database (TMDB), streaming data from JustWatch. This product uses the TMDB API but is not endorsed or certified by TMDB. Streaming availability checked September 2026.