British actor Robert Pattinson picked up an embarrassing injury during his first day shooting hit vampire movie TWILIGHT - he pulled a muscle in his buttocks.
The heart-throb was given the task of lifting co-star Kristen Stewart into the air during their initial scenes together.
But Pattinson was forced to take time out from filming when he damaged ligaments in his rear end - and had to undergo a butt-rub before he could continue shooting.
He tells Britain's Cosmopolitan magazine, "I got injured on the first shot of my first day on Twilight. I lifted Kristen and ripped my a**e cheek. I had to get a bum massage for the cheek."