Though I don't know that you're really focusing on erotic food scenes in movies:
Part of what made it "important" in a film way was the unusual nature of the scene itself. For its time, it was an unusually erotic scene. They just didn't put them in movies like that (at least, not non-X rated ones). A better (to my mind) erotic food scene can be found in 9 1/2 weeks with Mickey Rourke (1986). Though that can be a difficult movie to watch because of the other sexual explorations that also go on in it.
As for foodie movies...
Chocolat and Babette's Feast come to mind immediately.
Don't think I'd much like a horror/food film.