Kristen Stewart - Robert Pattinson's Nervous Tears

Robert Pattinson is terrified of breaking down in interviews.

The 'Twilight' heartthrob gets stricken by nerves whenever he has to speak about himself and wishes he could stay out of the spotlight when he isn't making movies.

He said: 'During interviews I'm incredibly nervous. I don't want there to be a silence, because I'll start crying out of nervousness. I just say the first thing that comes into my head. But the only way to establish any kind of mystique is to completely shut up and never talk to anyone. Unfortunately, I have to. It's in my contract.'

The 23-year-old star - who is dating his 'Twilight' co-star Kristen Stewart - hates watching himself on screen because he always feels like a "fraud" who is ill at ease with his emotions.

He explained to Live magazine: "I took my mother to the 'Twilight' premiere and squirmed through the first ten minutes. But in the end I couldn't bear it, so I had to leave and went out and sat in the car.

"I hate watching myself on screen, because I'm constantly worried that I'll look like a fraud. Even before I started acting, I was constantly thinking I was faking my emotions. I remember when I was a teenager thinking my girlfriend was cheating on me, and going around riling myself up, pretending to cry. It was totally illegitimate - I actually didn't feel anything."