10. 'Buffy the Vampire Slayer'
When people thought about Buffy the Vampire Slayer prior to 1997 (not that they often did), the only thing that came to mind was the 1992 Kristy Swanson film. But then the WB began airing a new series with the same name, and Sarah Michelle Gellar played in the lead role. Both projects were helmed by Joss Whedon, but the movie seems quite under-cooked in comparison. Gellar battled vampires for seven seasons, and the show became a cult sensation that spawned comic books, a spin-off and hordes of fans that know every line of every episode.