Oppenheimer sweeps Oscars as Christopher Nolan and Cillian Murphy take top gongs

Emma Thomas and Christopher Nolan accept the award for best picture for Oppenheimer (Chris Pizzello/AP)

Christopher Nolan’s epic biopic Oppenheimer has swept the Oscars, winning seven awards.

The film about J Robert Oppenheimer, the theoretical physicist described as the father of the atomic bomb, was named best picture while Irish star Cillian Murphy won best actor and Nolan took the best director award.