most of my favorite movies have already been listed, so I'll just give the ones that I didn't see up.
Avalon (Polish movie about VR)
eXistenZ
Shinobi
Romero's zombie movies (yes, I know they've already been mentioned, but I couldn't resist)
The Rock (with Sean Connery and Nicholas Cage)
Where Eagles Dare (fantastic Clint Eastwood WW2 movie about infiltrating a nazi castle!)
Fist of Legend (just about every Jet Li movie, actually)
Tombstone
Godfather Trilogy
Count of Monte Cristo
Dune (miniseries, not the movie)
Princess Bride
Drunken Master (Jackie Chan's best, imo)
The Road Warrior (like it a lot more than the first Mad Max movie)
as for documentaries, I haven't seen many, but I'm watching "The Question of God" right now, which goes about comparing the lives of Sigmund Freud and C.S. Lewis. Pretty interesting. Also saw Supersize Me a while back. Can't say it did much for me though. As soon as it was over I wanted a hamburger.
There are a couple I want to see, such as "Hitler's Search for the Holy Grail," "Hell - The Devil's Domain," which talks about the history of 'Hell' in mythology and different cultures, and last of all: "The Knights Templar"
some of those can be found on
http://www.mvgroup.org/forums/