Actress Helena Bonham Carter has to audition for parts in Tim Burton's movies, even though he is her longterm boyfriend.

The British actress has been dating the Big Fish film-maker since they met on the set of Planet Of The Apes in 2001 and they have a two-year-old son together.

And Bonham Carter has no problem with auditioning because she wants to earn the right to play a part, rather than land a role through nepotism.

She says, "You need to have an objectivity sometimes. Of course I have to be right for something otherwise it would be appalling just to get a part because I sleep with him."