Man, lots of good suggestions already. Lemme see, is there anything that I can add to this list. I really liked Minority Report. It has its plot holes to be sure, but it's still pretty neat. "I, Robot" was a better movie that I thought it was going to be. Will Smith has turned into quite the actor. Are you into rubber monster alien worms? Check out "The Deadly Spawn" also known as "Revenge of the Aliens". A disturbing but entertaining movie from the B&W era is "Freaks". Not really sci-fi, but interesting to see the deformations that the human body is capable. Many of which were fairly common until modern medicine figured out a way to hault the problem less than 50 years ago. Not exactly a PC movie, but you can tell that the actors, all of whom were really afflicted with their birth defects, really enjoyed being the heroes of the film. How about the Rowdy Roddy Piper classic "They Live" where he has special sunglasses that allow him to see the hidden messages that aliens have plastered across our planet...as well as the aliens themselves. Famous for the line " I've come to chew bubblegum and kick @$$....and I'm all out of bubblegum."

great stuff.
Jake