Nicolas Cage has admitted if he hadn't learned to channel his anger through acting, he could have ended up in jail.
Opening up about being an angry young man at 18, The Frozen Ground star told The Sun life could have turned out very differently from being an Oscar-winning actor.
He said: "I wish I had not been so angry at 18. I was a pretty wild guy with a lot of energy. I was into punk rock and didn't know where I was fitting in.
"I wanted that energy to go somewhere. I wanted it to be constructive rather than destructive, but I just did not have a clue in which direction to take it. Finding a career in which I could express those feelings was lucky. It could have gone either way. I could have ended up in jail."
Leaving Las Vegas star Nicolas said he had learned to tame his temper but knew he had the sort of face that looked sad.
He said: "I have learned to calm down. I have developed into a person who is generally happy. People say I look sad - the way my eyes are - but I want to be happy. The way I was? It was a complicated time. You are trying to find some reason for being, trying to come to terms with who you are and what you want to do with your life. I was lucky because I managed to get away with it."
Nicolas credits Richard Gere with helping him to change his ways: "Richard Gere on the 1984 film The Cotton Club said to me: 'If you keep on behaving as you are, you will only have about three film roles left in you.'
"I was so gung-ho. I was ripping up my trailer, trashing my hotel room, walking on set and insulting everyone... So another thing I wish I knew at 18 is that manners are very important and being polite costs nothing. Being angry is a waste of valuable energy."