Nicole Kidman spent two years recovering after overdoing a dance scene in Moulin Rouge! because her knee was injured so badly.
The exhausted star tore cartilage during one early morning routine and had to limp through the rest of the movie and beyond.
She tells The Hollywood Reporter, "It was that dancing mentality, where you keep dancing. It was, like, 3am, and I was thinking, 'I'm so tired and I probably shouldn't do another one (scene) in these heels, but yeah, OK, one more take, this will be it.' And I just kind of fell and tore my knee up.
"It was bad because it (lasted) the next couple of years."