HIROSHIMA (Reuters) - Best picture winner "Oppenheimer" finally premiered in Japan on Friday, eight months after a controversial grassroots marketing push and concerns about how its nuclear theme would be received in the only country to suffer atomic bombing.

The biggest winner at this month's Academy Awards, the film directed by Christopher Nolan about U.S. physicist J. Robert Oppenheimer, who led the race to develop the atomic bomb, has grossed nearly $1 billion globally.