Sandra Bullock explains the art of shooting a good sex tape

Sandra Bullock might never have shot a sex tape, but she's been in enough movies to know a thing or two about looking good naked on camera. During an interview on "The Graham Norton Show," the topic of Bullock's naked scene with Ryan Reynolds in "The Proposal" was brought up and eventually turned into a discussion of the art of sex tapes.

"If you're having sex and you're being recorded and you don't know you're being recorded, my guess -- not that I've ever done it -- is that you don't look good doing it," she says.

Bullock continues, "I can't imagine that someone would look good having intercourse not knowing their being filmed. But if you notice every time someone has a sex tape it's beautifully lit, they've got the good angles. ... Who does that?"

Based on how many celebrities have released sex tapes, it turns out there's quite a few people who do just that.

Photo/Video credit: BBC One