Teenage actor Logan Lerman was left bruised and battered during filming of the big screen adaptation of the PERCY JACKSON children's books - because his fight scenes were too realistic.
Lerman plays the lead in Percy Jackson & the Olympians: The Lightning Thief, about a teenage boy who discovers he's descended from a Greek sea god.
And the 18 year old was so determined to make his role as realistic as possible, he performed his own fight scenes and even shot dangerous underwater segments.
He says, "We were constantly learning a different fight scene or skill for the next action sequence. I was constantly bruised and beaten. You kind of just flow with it. It was something I wanted to do. It always looks better on camera when you are actually beating yourself up.
"I'd be spending all day underwater doing the scene, for a couple of minutes at a time. We'd go up, get some air, go back down and be holding yourself at the bottom while guys with scuba tanks would be feeding you air. We did a lot of dangerous stuff but that was probably the most nerve wracking."