- Last week Oppenheimer won 7 Academy Awards, including Best Director for Christopher Nolan, Best Actor for Cillian Murphy and Best Supporting Actor for Robert Downey Jr. But today, I’m going to focus on how and why editor Jennifer Lame’s work won the Oscar for Best Editing. Join me as we break down the numerous techniques that makes this 3 hour movie, which is packed with information, characters, plot points, and themes, into one of the most dynamic, fast paced, and engaging films of the year.