‘I was definitely freaked out about filming that scene where Adam has to inspect my boobs to see if they are natural.

‘I knew it was coming, I thought, “I've only got a month, three weeks, then two weeks”.

‘I had to train pretty hard and stay on a structured diet. I don't like the word 'diet' though, I just kept my eating in check to get to a place with my body where I felt, “OK, its cool, I can be in a movie in my underwear”.’