In no particular order...
Make mine non-linear, please
Run Lola Run, Pulp Fiction, Go!, The Limey
Would you like a twist with that?
Fight Club, Confidence, The Sixth Sense, Matchstick Men, The Player
Musicals I can tolerate
Moulin Rouge, Grease, Annie, Chicago, The Sound of Music
Guilty pleasures
Ferris Bueller's Day Off, Sixteen Candles, The Breakfast Club, Some Kind of Wonderful, Can't Hardly Wait, Orange County, Clueless
Don't answer the phone
The Exorcist, Misery, Jaws, The Ring, Seven, Jacob's Ladder
Classics
Casablanca, The Narrow Margin (1952, not 1990), Some Like it Hot, Double Indemnity, Psycho, Rebel Without a Cause, To Kill a Mockingbird
Comedy
Airplane, Young Frankenstein, Blazing Saddles, National Lampoon's Christmas Vacation, Planes, Trains, and Automobiles, Raising Arizona, Bill Cosby: Himself, L.A. Story, Dr. Strangelove
For the inner child
Mary Poppins, Alice in Wonderland, Spirited Away, Toy Story, Who Framed Roger Rabbit?, Willie Wonka and the Chocolate Factory
Documentary
Gimme Shelter, Step into Liquid, Spellbound, Koyaanisquatsi, The Thin Blue Line
And the rest...
Lean on Me, Fargo, The Hunt for Red October, Eyes Wide Shut, Scarface, Blow, SLC Punk, Indiana Jones and the Last Crusade, The Shawshank Redemption, Priest, American Beauty, Whale Rider, To Die For, Erin Brockovich, Bend It Like Beckham, O Brother, Where Art Thou?, U-571, Contact, Magnolia, Cruel Intentions, The Opposite of Sex, Six Degrees of Separation, Election, Traffic, Jackie Brown, Reservoir Dogs, Kill Bill, M*A*S*H, Star Trek...most of 'em
And finally, for the best Elvis Costello cameo ever...
200 Cigarettes