Harry Potter star Rupert Grint says the cast needs magic potion to soothe their numb behinds.
Grint, who stars as Ron Weasley in the movie, said: "You sit on a broomstick for hours and it starts to hurt. It gives you a numb bum." Thesun.co.uk reports that streakers also interrupted the shooting.
"We had two streakers down there. We'll be finished filming in a few months. Then we'll be making the final ever one. I think I'll miss it. I'd like to do a comedy movie next but we'll have to see what comes up," Grint added.