Helena Bonham-CARTER was left red-faced on the set of SWEENEY TODD: THE DEMON BARBER OF FLEET STREET - because she had to kiss her boyfriend Tim Burton'S best friend Johnny Depp. The Fight Club star plays Mrs Lovett in the musical version of the classic horror story and performs a kissing scene with Depp in the movie - whilst her partner Burton directed them. And the 41-year-old actress admits that even though her partner was watching - she enjoyed kissing one of Hollywood's most lusted after male stars. She says, "I was being paid by my boyfriend to kiss his best friend." The grisly blockbuster has been highly acclaimed by critics and fans alike - with Depp nominated for a best actor Oscar at next month's (Feb08) ceremony and Bonham Carter receiving a best supporting actress nod at this year's (08) Golden Globes.