Matt Stone: 'We're not slamming the Mormons'
South Park creators Trey Parker and Matt Stone have taken to the West End stage to introduce their satirical musical The Book of Mormon.
Hundreds of fans had queued outside London's Prince of Wales theatre on Monday to see the first UK performance.
The Book of Mormon, which lampoons religion and musicals, has already been a huge Broadway hit.
The BBC's Arts Editor Will Gompertz spoke to Stone and Parker about their West End debut.