Summer Lights (2016)

On the 70th anniversary of the atomic bombing of Hiroshima, Akihiro, a native Japanese filmmaker living in Paris, travels to Japan to interview survivors for a documentary commemorating the victims of the attack. Deeply moved by the interviews, he decides to take a break to wander through the city during which he meets Michiko, a merry, enigmatic young woman. Michiko takes him for a joyful and improvised journey from the city towards the sea where the horrors of the past are mingled with the simplicity of the present.

Unfortunately the movie Summer Lights is not yet available on HBO Max.