Buffy the Vampire Slayer
A really bad vampire film. Also a series from the late 1990's about the same character. Stars Sarah Michelle Gellar as Buffy and numerous other bits of totty that in no way are, or look, like they are at school. The best Looking being Faith (Played by Eliza Dusku). Possibly holds the TV record for everymember of the cast having a bizarre name: Zander, Willow, ect.
The poularity of the show can be seen everywhere. Even arrse members have usernames derived from the show. For example: Anya1982