There is a movie in which the United States dropped an atomic bomb on Hiroshima, Japan. What's the name of this movie?

The following is the relevant introduction of the film:

Film is a continuous image picture developed by the combination of mobile photography and slide show. It is a visual and auditory modern art, and it is also a synthesis of modern technology and art that can accommodate drama, photography, painting, animation, music, dance, writing, sculpture, architecture and other arts.

Film is a visual art, which simulates the experience of exchanging ideas, stories, perceptions, feelings, beauty or atmosphere through recorded or programmed moving images and other sensory stimuli. The word film is the abbreviation of cinematography, which is usually used to refer to film production and film industry, and the resulting art forms.

Movies are cultural relics created by a specific culture. They reflect these cultures and then influence them. Film is regarded as an important art form, a source of mass entertainment and a powerful medium for educating citizens. The visual basis of film endows it with universal communication power.

Refer to Baidu Encyclopedia-Movies for the above information.