Mila Kunis has revealed she was starving for much of the Black Swan shoot - and a trip to the catering table was not an option.
The Russian-born actress had to appear superslim in the ballet thriller and watch her calorie intake at all times.
She shed 20 pounds (9 kilograms) and weighed in at just 95 pounds (43 kilograms) by the time the film wrapped - but she'd do it all over again if she could.
Kunis reveals, "I was on a five meal-a-day diet of 1,200 calories. I could eat anything that fit into the palm of my hand. That's it.
"It was hell but I wouldn't trade it for the world... How often can you lose 20 pounds, get en pointe and work with brilliant people."