The Australian actor - who has children Oscar, 10, and Ava, five, with wife Deborra-Lee Furness - has loved ones spread throughout the world and would love to have special abilities that would make seeing the people he cares about easier to do. He said: "If I could have a superpower I`d love to be able to swim and breathe underwater - I`d love to be Aquaman. "I`m sure there are better superpowers though - flying would be good and teleporting, as I have family and friends all over the world. I`m a little greedy, I want three superpowers." While the `X-Men` star has no superpowers, he admits he has one unusual habit - constantly moving in his sleep. He explained: "I`m one of those people who runs in their sleep - I twitch a lot. "I`m fine with it but my wife says that she can count to 17 after I fall asleep and I`ll start twitching. Luckily she`s quite a heavy sleeper but that`s probably my most frustrating habit."