Donna being stalked....
Seems like that whole storyline where Donna was stalked in season 7 was maybe thought up because of the popularity of the movie Scream. I don't remember that movie very well so I don't know if the stories are similar but that movie came out in late 1996 and the stalking Donna episodes were early 1997 I think.
Any other storylines you can think of which seem inspired by popular films of the 90s?