I wanted to put Event Horizon, but didn't quite fullfilled the cult status, but it is still very good film.
Sure is cult (for me and my friends anyway)... I still remember the first time I saw this, high as a kite, and it totally freaked me out! It really masters the "lost in space feeling"! A recent movie that reminds me of Event Horizon is Pandorum, actually a pretty good sci-fi-horror movie, and again it helps to be kind of keef!