Fat Man and Little Boy

Name: Fat Man and Little Boy
Genre: Drama, History, War
Released: 1989-10-20
Duration: 2 h 7 min
Rating: 6.2
Cast: Paul Newman, Dwight Schultz, Bonnie Bedelia, John Cusack, Laura Dern

1989·Movie·PG-13·127 min·★ 6.2(166)

DramaHistoryWarMore English titles

“The story of the extraordinary people who changed our world.”

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."

▶ Watch trailer

Where to watch Fat Man and Little Boy in United States

Stream

Rent

Buy

Click a service to open Fat Man and Little Boy there. Availability last verified on June 20, 2026.

Where is Fat Man and Little Boy streaming around the world?

Country	Streaming on	Rent / Buy
United States	Kanopy	Amazon Video, Apple TV Store, Google Play Movies
India	—	Amazon Video
United Kingdom	—	Apple TV Store, Amazon Video, Google Play Movies
Canada	—	Apple TV Store, Google Play Movies, YouTube
Australia	—	Apple TV Store, Amazon Video, Google Play Movies
Germany	—	Amazon Video
France	—	Sooner

About Fat Man and Little Boy

Fat Man and Little Boy is a 1989 English-language drama, history and war film directed by Roland Joffé. The cast is led by Paul Newman, Dwight Schultz, Bonnie Bedelia. It has a runtime of 2h 7m. Viewers rate it 6.2/10 across 200 ratings. In United States, it is currently streaming on Kanopy.

Fat Man and Little Boy was produced by Paramount Pictures and Lightmotive and made in United Kingdom and United States of America. It was released on October 20, 1989, and carries a PG-13 certification.

Director: Roland Joffé
Writers: Bruce Robinson, Roland Joffé
Release date: October 20, 1989
Original language: English
Age rating: PG-13
Status: Released
Country: United Kingdom, United States of America
Production: Paramount Pictures, Lightmotive

#atomic bomb#new mexico#world war ii#atomic bomb test#biography#based on true story#1940s#manhattan project

Fat Man and Little Boy cast & crew

Fat Man and Little Boy was directed by Roland Joffé and written by Bruce Robinson and Roland Joffé.

The cast features Paul Newman as Gen. Leslie R. Groves, Dwight Schultz as J. Robert Oppenheimer, Bonnie Bedelia as Kitty Oppenheimer, John Cusack as Michael Merriman, Laura Dern as Kathleen Robinson, and Ron Frazier as Peter de Silva.

Behind the camera, the score was composed by Ennio Morricone, cinematography is by Vilmos Zsigmond, and it was produced by Tony Garnett.

Is Fat Man and Little Boy worth watching?

Fat Man and Little Boy holds an audience score of 6.2/10 from 166 ratings, a solidly received drama films.

At 2h 7m, it's a standard feature-length watch.

If you enjoy drama, history, and war, Fat Man and Little Boy is worth a place on your watchlist.

How and where to watch Fat Man and Little Boy

In United States, you can stream Fat Man and Little Boy on Kanopy, or rent and buy it on Amazon Video, Apple TV Store, Google Play Movies, and Fandango At Home. Click any service above to open it directly.

Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.