When you play a character it's the persona you bring across from a book to film, or book to script to film. If I play Frank Sinatra, there's gonna be things I do in a movie that Frank might not have done, but it's the personality that comes across.

You may have good relationships and you may have bad. You just have to roll with it and truly believe, and not be cynical. But, it's hard. You go through four relationships where you're not happy and you've been cheated on, or whatever - and I'm not saying this has happened to me - but you have to still believe.

I Am Number Four is an action-packed adventure entwined with a romantic story. I play the role of John Smith. John wants to be a normal kid, but he is from a different planet and he has been given this destiny of becoming a warrior.

I think your emotion changes from person to person. As you get older, a lot of people become cynical because of the experiences they have had and haven't been able to let go of, whether they've been cheated on or whether it hasn't worked out. It's so easy to turn around right now and say, "Just let it go."

When you play a character it's the persona you bring across from a book to film, or book to script to film. If I play Frank Sinatra, there's gonna be things I do in a movie that Frank might not have done, but it's the personality that comes across.

I like movies that interest me and stories that interest me, I don't think about how much money it's gonna [cost] to make the movie, I don't think about any of that. I think about certain aspects like who's making the movie and who's gonna tell a story that I wanna be involved in, but I don't have that choice and I never have.

I think it's becoming rarer and rarer when I consider the experiences that I've had in my life between my dad and my brother and all the men in my life who have all been gentlemen and have looked after women.