Arguably, Stargate is better known in it's tv incarnations than the movie that inspired it. (The only pop culture reference to the film I've ever seen was in a South Park episode.) How many people think of the Robert Altman film when M.A.S.H. is mentioned today?

Sadly, I've seen evidence that Tom Cruise's Mission: Impossible films are better known than the classic tv show that it's based on, so it cuts both ways.

Will be interesting to see if anything of note is announced at Disney's D23 expo this weekend.