Even at the ripe old age of 66, Arnold Schwarzenegger clearly has a lot to give to the world. Arnie took to Gold's Gym in Venice Beach, California this week, disguised as Howard; a friendly, slightly creepy personal trainer - and he's never looked better.

Hidden cameras caught gym-goers' reactions as Arnie passed on a few nuggets of wisdom. The stunt was pulled-off in support of After School All-Stars; an American non-profit organisation that promotes and encourages child fitness.