Michael Mears contrasts the film with his play, which puts the Japanese experience of the bombing front and centre

The Christopher Nolan film Oppenheimer is undoubtedly impressive and absorbing for large parts of its three hours. But it fails to depict the true horror of the bomb’s effects on those on the ground in Hiroshima and Nagasaki.

Your article about the film (Anti-nuclear groups welcome Oppenheimer film but say it fails to depict true horror, 21 July) refers to the “virtual absence of the nuclear debate from the arts over the past three decades”. Yet the production of my stage play The Mistake, performed by me and the young Japanese actor Riko Nakazono, puts the Japanese experience of the bombing of Hiroshima front and centre.