Murphy won the best actor trophy, and Nolan was named best director. Emma Stone won best actress for “Poor Things.” Director Christopher Nolan’s film starred Irish actor Cillian Murphy as theoretical physicist J. Robert Oppenheimer, leader of the U.S. effort in the 1940s to create a weapon devastating enough to end World War Two. Los Angeles: “Oppenheimer,” the blockbuster biopic about the race to build the first atomic bomb, claimed the prestigious best picture trophy at the Academy Awards on Sunday. A three-hour historical drama about science and politics, “Oppenheimer” became an unlikely box office hit and grossed $953.8 million,...