Natalie Portman and Sarah Lane
When Natalie Portman played in Black Swan, she didn’t dance in the movie. It was the ballerina Sarah Lane, who even got mad when she heard Portman declared that she was the one dancing in the movie:
“Of the full body shots, I would say 5 percent are Natalie. All the other shots are me. The shots that are just her face with arms, those shots are definitely Natalie. But that doesn’t show the actual dancing.”