Alex Pettyfer wishes he could fly.

The British actor admits he was envious of the superpowers displayed by his 'I Am Number Four' character John but loved getting the chance to try out having unusual skills.

He said: "Everything my character John goes through starts triggering all these different emotions for Sarah (Dianna Agron), which then trigger his powers. Sarah represents this real sense of normality for him; the possibility that his life could be normal with her. Yet as he's falling in love with her, all the things he doesn't want to happen start happening. He starts getting his powers, and jealousy triggers him to become stronger and to have his telekinesis and his light powers.

"In the movie I've got telekinesis and I've got lumen, which is a source of light that I can use. But there are so many things I would want in real life-one power would definitely be the ability to fly."

As well as enjoying having superpowers, Alex loved the physical aspect of the movie, particularly getting to use guns and do his own stunts.

He added: "I really loved all of it. I mean, from day one where I got the movie, to training for a couple of months before, to actually doing it. I'm twenty years of age and I'm just a big kid. Not many guys get to experience what I've experienced. To go on a movie set and run around, and play with guns and jump off cliffs, that was really fun."