Actress Keira Knightley wanted to quit films after getting diagnosed with post-traumatic stress disorder (PTSD) in her early 20s. In an interview to The Sunday Times' Style magazine, Knightley 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."

But it was Knightley's friends and family, who supported her through thick and thin and helped her to battle the low period. "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.