ROBERT PATTINSON would like one more chance to perfect his screen kiss with real-life girlfriend KRISTEN STEWART in the first TWILIGHT film - because he's convinced he messed it up on camera.

The couple locked lips awkwardly as the Brit was auditioning to play Edward Cullen in the film - and he admits he was still trying to perfect his technique when it came to shooting the important scene.

Pattinson admits they had reshoots, but there wasn't one take he was happy with: "I messed it up again... That was a hard scene. That was the audition scene as well.

"I was always kind of pre-empting (it); the pull back... and I'm not... leaping away correctly."