The A-Team star Bradley Cooper can't perform underwater scenes in movies - because he has a perforated eardrum.
The action man likes to perform all the stunts in his films, but he has to turn down swimming sequences - because they would result in hospitalisation.
He explains, "I have a hole in my ear so I can't actually go in the water."
There's one such scene in his new film Limitless, and he admits he was tempted to go for it.
He adds, "I probably would have done it, like an idiot, and wound up in hospital."