Actress Anna Kendrick refused to tell anyone she had landed a role in UP IN THE AIR for weeks - because she was convinced movie bosses had made a mistake hiring her.
The Twilight star appears opposite George Clooney in the drama, which has already been nominated for a string of top honours at next year's (10) Golden Globes and Screen Actors Guild Awards.
The 24 year old was so stunned to learn her audition was successful, she kept the news to herself for weeks, fearing there had been a casting error.
She tells British morning show GMTV, "I'm really superstitious. It's the one thing I'm really superstitious about. I feel the second you start to celebrate, something's going to go horribly wrong - so I didn't tell anyone for weeks. I sat on it for weeks.
"I kept waiting for them (movie bosses) to realise they'd made a mistake but then eventually I called my mum and she burst my eardrums."