I see SFC is doing a Dune mini-series. I am not sure why everyone loved the Matrix. 2001 is all effects, with less than 20 minutes of dialog in the whole movie. 5th element was different and enjoyable, but not all of it was good. Well, Alien is defintely a classic.
Aliens ranks up there too.
Galaxy Quest is probably the best parody out there. I am sure there are others that I forget at the moment. Star Trek IV was pretty good. But I don't think you can really do that on the big screen. Too much stuff gets changed in the movie which doesn't make any sense.