Hollywood star Gwyneth Paltrow has been left with permanent numbness in one of her legs after breaking her knee while making the new movie Iron Man. Trooper Gwyneth, tried to keep acting on through the pain, before discovering the injury needed surgery. She says, "I broke my knee - because I’m a moron and I’m always bashing into things by accident. I’ve broken my toes 30 times."I don’t know what’s wrong with me. I bashed my knee, it really hurt." The accident even caused a bust-up with director John Favreau, who was convinced she was exaggerating her pain: "I kept exercising and running around in the movie. Then it really started to expand. In one scene I’m running away from Ironmonger - the bad Iron Man - and I said to John, ‘My knee is really hurting, I don’t know how many times I can do this.’ He was rolling his eyes, saying ‘you’re fine’."But I went to the doctor and I had a fracture so bad they had to do surgery the next day. They put cement in there! So I felt very smug and he apologised."It still doesn’t feel right. I had a nerve problem. My legs don’t feel the same. Sometimes it happens with surgery. If I get a wax, one leg hurts more than the other."