I guess you don't like long movies. Ghostbusters, which I just re-watched this past weekend, didn't really delve into the characters much. It was just a "fun" movie.I agree that stretching a story is also bad, but to me, a short running time is akin to not getting my money's worth.
If a movie is short, but ridiculously entertaining (see my earlier example of WALL·E), have you not gotten your money's worth?
The problems with those movies were not with their running times (at 139 minutes, Spider-Man 3 was longer than both of its predecessors) but rather with the quality of their scripts. To say that "longer movie = better movie" is an at-best spurious argument that has little to no foundation in logic -- see my earlier point about the length of books.X-Men 3 and Spiderman 3 were both woefully inadequate in the story telling department and should have been longer.
I mean, heck, Psycho is barely over an hour and a half long, and it's phenomenal. Same with Reservoir Dogs. There's no reason to say that in order to be good, a movie needs to have a length of X minutes. There's just as much room for The Godfather and Casino as there is for Cloverfield (84 minutes) and Good Night, and Good Luck (92 minutes).
Then again, Raiders of the Lost Ark was 115 minutes, while Indiana Jones and the Kingdom of the Crystal Skull was 122 minutes, yet with KotS, I felt like it was missing *something*.