Fat Man and Little Boy — United States
The 1989 film dramatises the Manhattan Project's internal conflicts — between General Leslie Groves's military priorities and the moral doubts of the scientists building a weapon of mass destruction.
The Manhattan Project involved over 130,000 people at sites across the US and Canada at a cost of $2 billion (roughly $23 billion today). 'Fat Man' (plutonium implosion, dropped on Nagasaki) and 'Little Boy' (uranium gun-type, dropped on Hiroshima) were the two different bomb designs developed simultaneously at Los Alamos under Oppenheimer's scientific direction and Groves's military command.