Thousands of the men have suffered cancers and other conditions that other nuclear states have recognised as probably linked to the now-banned testing.
But not the UK. It has paid no compensation at all.
In Mr Morris’s case, as the film reveals, he believes the death of his first child, Steven, in 1962, was the result of the radiation damage he suffered during Operation Grapple - the name given to a series of British nuclear weapons tests.
Steven was four months old when he died in his cot. The coroner suspected the baby’s lung had not properly formed. Why? Nobody knows.