Natalie Portman has revealed how she went through pain and agony for her new film Black Swan after suffering a dislocated rib on set.
The 29-year-old actress told David Letterman she spent up to eight hours a day in dance training to play a ballerina in Darren Aronofsky's dark thriller, but the film was so low budget there was no medic to treat her when she was injured.
Natalie said: "I injured a rib, I like dislocated a rib, it sort of went under another one, when you get lifted it just sort of went under.
"When I got injured I called the producer, I was like 'Could you get the medic? I need an ice pack or something right now,' and he was like, 'Oh, we don't have a medic because it's super low budget.'
"I have been working for like 20 years, I don't even think that's legal. I was like before you take away a medic, take away my trailer and the next day I didn't have a trailer, I swear to God!"
The Closer star also lost weight for the role, as she wanted to make her portrayal as believable as possible.
She said: "I think I lost like 20 pounds, I mean I'm 5ft 3in so it was pretty extreme.
"I mean I am back at my healthy weight now, I like eating so I waited until the very end to do the diet part."