Marion Cotillard has opened up about her teenage years saying she wasn't very sociable or happy and became an actress to escape her situation.

The 38-year-old Dark Knight Rises star told The Belfast Telegraph, "I was crazy, but I was not wild. I was not very sociable, not very happy either. I could do crazy things but in a way to destroy myself.

"I decided to be an actress. Perhaps the idea was to escape – but I realised that it was the exact opposite, that it was the only way to meet myself. To meet my true self and not escape anymore, being someone else helped me to find my true self."