Streetdance 3D premieres in London

Britain's Got Talent stars Diversity, Flawless and George Sampson showed off their moves in London's Leicester Square on Monday night.

They were there for the premiere of their film Streetdance 3D. It is the first British movie to be shot in an extra dimension, which posed a challenge for the cast.

"It's hard to choreograph specially for 3D as you don't just want to dance how you would for any normal camera, you want to try to get people involved in the experience. Trying to think in 3D is a bit wierd at first, but you get used to it," said Diversity's Ashley Banjo.

The movie sees an urban dance troupe forced to rehearse with a group of ballet dancers in a bid to win a street dancing competition.

Heather Mills and N-Dubz were among the other stars who attended the launch. The UK trio have a song on film's soundtrack. Got To Dance winner Akai Osei also danced on the red carpet. The 10-year-old has a small role in the feature.