"I had my first sex scene and it was a traumatic experience. But Kimberley found it a lot more embarrassing. I think it's easier for boys. It was her first too so we were in the same situation," the Sun quoted him as saying. He added: "It's just such a weird thing anyway being in a room of 12 men."
The film revolves around three teenagers who indulge in a wild weekend of binge drinking, drugs, shoplifting and joyriding. Grint said: "When we were filming we were drinking every night. It helped the bonding."