Somewhere along the line, I developed a need to see any movie even remotely involving time travel. I'll sit through hours of crap if I know the words "temporal distortion" will be uttered. Come, take my hand and let my wasted hours enrich your life.
12 Monkeys (1995)--Time travel and human error form a tragic loop around an increasingly battered and disoriented Bruce Willis. Terry Gilliam's haunting story of flawed communication between the plague-stricken future and a disbelieving present also features Brad Pitt's awe-inspiring portrayal of a manic mental patient/animal rights activist who may or may not be responsible for the impending viral apocalypse.
Time Bandits (1981)--Director Gilliam gives a kid and a renegade herd of abusive midgets a stolen map of time and legend, then sets both the Supreme Being and the Forces of Ultimate Darkness in pursuit. I've loved this movie since I was 12 years old.
Timecop (1994)--Laugh all you want, smartass. In between Van Damme's requisite action scenes are a satisfying number of well-realized "What If?" scenarios.
Star Trek: Generations(1994)--While a roaming distortion in the fabric of reality and time might have raised tents in the pants of Trekkies by letting Kirk and Picard fight side by side, it also created a thrilling plot loophole that robbed the climax of any sense of real danger.
Frequency (2000)--So many critics complained that this film shamelessly mixed Hollywood clichès that I almost didn't see it. Well, I finally did, and dammit, it was just fine. I don't care if a movie combines The Last Temptation of Christ with La Femme Nikita--Frequency succeeds because it's got a father and his future son altering destiny with a ham radio. In my simple little world, that's good enough.