In not too structured an order, but generally going down to the most favorite.

The Island

Pandorum

Repo Men

Alien

Avatar

Gattaca

PS: Believe it or not while putting together the list of movies for this post took all of ten minutes, I spent a further 15 minutes debating what to call it. I was originally going to call this “My favorite sci-fi movies”, but then for some reason decided to start Googling and saw that apparently science fiction isn’t actually meant to be called sci-fi…so then I wasn’t sure what the heck to call this, because what if to some people the movies I list actually do fit into what is apparently the “dumbed down” and washed out version of science fiction (otherwise apparently known as “sci-fi”), even though I think they’re great (I know Avatar, for example, would probably get some argument on this front)? So instead of inducing a headache with stupid terminology, I decided to avoid shortening of any sort and just call the damn thing “science fiction”.