The 32-year-old believes she is most famous for appearing in her underwear and was surprised that the movie didn't have any revealing scene, reported Sun Online.
"I got the script - but there was no part where I was in underwear. There was nothing remotely like that. It was always Keith referencing sexy things. So I said to Leigh, 'You have not got one scene where I am in my underwear, which is probably what I am most famous for in the UK.
"He goes, 'Well, we didn't want to ask you.' And I was like, 'Listen, I think you should do it. When I walk down the corridor, you can put me in slow-motion, give me a wind machine and let me do my thing," she said.
After Brook's request, movie bosses have now included a scene in the film, in which Brook plays herself and she is seen walking down a corridor in only her lingerie.