Keira Knightley thought of quitting acting after suffering from PTSD

Hollywood star Keira Knightley has revealed that she thought of quitting acting following the overnight success of "Pirates of the Caribbean".

The actor said she nearly turned her back on Hollywood after suffering from Post-traumatic stress disorder (PTSD).

In an interview with The Sunday Times' Style magazine, Knightley was asked if she ever thought about quitting acting, she said, ''I did think about it. Particularly at the point when I had a breakdown. I had PTSD and panic attacks. I literally couldn't work for a year and I didn't know whether there would be an end to that."

"I have a super-solid background and thank f**k for that. My family and my small but very close group of friends just wrapped me up. And I think, without that, it would have been a very different story. I knew I always had somebody there to cuddle me who didn't want anything from me. Ultimately, I didn't want them (the media and paparazzi) to win. The only thing I want to do is make films," she added.

The actor said she found stardom "very intense and lonely".

''It was very intense and lonely. If there's a camera at a party, I don't think that's a party, so I was never interested in being in that scene. I always wanted to be top of the class, and I always wanted to be perfect, and I always thought that I could just do fame right.

"I tried being 5lb heavier, but then people say you have cellulite, and then 5lb lighter, and then you're anorexic and causing people to die. It was just so much. But in a funny way I think I was quite lucky in that it was so insane that I sort of recognised it," she said.

(With inputs from agencies.)