For an A-list star like Julia Roberts her job usually requires following a strict, healthy diet (think fish and steamed vegetables) but that was until she agreed to sign up for Eat, Pray, Love.
The Pretty Woman actress was encouraged to go Italian and eat pizza, pasta and... more pizza!
Speaking to Entertainment Weekly, Ms Roberts said: ‘Like in the scene with the pizza by the time the scene is over, I’ve eaten the entire piece.
‘When we were in Naples, we started shooting at eight in the morning, and I think by 8.45 I’d eaten eight or ten pieces of Pizza. Pizza was what I ate all day that day.’
She added: 'By the time we left Rome I was seven to ten pounds heavier.'
The weight gain didn't happen by accident though.
Julia says it was planned with Ryan Murphy, director of the film based on Elizabeth Gilbert's book.
She explained: 'You know, we talked about that because I didn't want people to say, "Well, she's supposed to go to Italy and eat all this food, but she looks the same in the whole thing." So I talked to Ryan about it.'
The plan was to stay true to the original book, which sees Julia's main character gaining weight in Italy.
Julia says: 'I could’ve used a bigger pair of jeans when I went off to (film in) India!'
The film is due for release 24 September – and all this talk of pizza has made us hungry!
By Leanne Bayley
SEE JULIA IN ACTION HERE