"Fat Man and Little Boy" is a dramatization of the Manhattan Project, focusing on the development of atomic bombs during World War II. While it captures key figures like J. Robert Oppenheimer and General Leslie Groves, and the general timeline of events, some aspects are dramatized or simplified for narrative purposes. Historical accuracy varies; for example, character portrayals and specific interactions may not be entirely true to life. Overall, while it provides a glimpse into the project's complexities, it is not a documentary and should be viewed with some historical skepticism.

"Fat Man and Little Boy" is a 1989 historical drama film directed by Roland Joffé. It depicts the Manhattan Project, the secret WWII initiative to develop the atomic bomb. The film focuses on key figures such as General Leslie Groves, played by Paul Newman, and physicist J. Robert Oppenheimer, portrayed by Dwight Schultz. It explores the ethical dilemmas and scientific challenges faced by the team as they raced against time to create the bombs "Fat Man" and "Little Boy," which were later dropped on Hiroshima and Nagasaki.

In the movie "Fat Man and Little Boy," the "Fat Man" refers to the atomic bomb design known as "Fat Man," which was dropped on Nagasaki, Japan, during World War II. The "Little Boy" refers to the bomb "Little Boy," which was dropped on Hiroshima. The film, released in 1989, dramatizes the development of these bombs as part of the Manhattan Project, focusing on the ethical and scientific challenges faced by the scientists and military personnel involved in creating nuclear weapons.