If we're going with 'know all the words', erm probably be Rocky Horror Show (plus all the songs, and it's even possible I may have been know to have to teach the timewarp as well...), but closing in fast is probably Dune and Miss Congeniality.
I have a few favorite movies My Big Fat Greek Wedding ,A Knights Tale,Something Got to Give,Only The Lonely (John Candy very funny man ),Monty Python movies ,Rear Window , Hell Rasier and Fried Green Tomatoes.
Great topic, we all have fav movies, but.... which one/ones are your absolute favs... the one you can "really" know and say " line by line "... how freaky are you with movies? ,... my favs (know all the lines) Scrooged and Weekend at Bernie's .
comedy- best in show,young frankenstien, airplane, office space
drama-american beauty, full metal jacket, one flew over the cuckoo's nest
some other random ones-lotr, goodfellas, say anything, pulp fiction, finding nemo, wizard of oz
I can't limit myself to a few choices, not even in just themes! I adore movies, my DVD collection so far includes James Bond (not all of them, working on that atm), LOTR trilogy (both the cinema versions AND the extended versions (I'm sucker for the book too....)), Kill Bill 1 & 2, Italian Job (prefer the original), The Rocky Horror Show, Matrix (all three), Grease, Dirty Dancing, Signs, Miss Congeniality, Bridget Jones (1 & 2), Terminator (1, 2 & 3), Dune, Muriel's Wedding, 28 Days and more.
Musical-Paint Your Wagon, The wall, Song Remains The Same
War-Kelly's Hereos, Great Escape, Stalag 17
Comedies--Too many to name.
Misc.--Lord of the Rings trilogy, Road Warrior series with Mel, The Rookie, anything with Seka, anything with, . . .sorry, I just got yelled at. Bye.
Where to start? Anything by Mel Brooks like Spaceballs and Blazing Saddles! I have been on a ten year foreign film kick and love Amelie, The City of Lost CHildren, Delicatessen, Like Water for Chocolate. Anyone got any more good foreign films for me?
Good date movies? I like the scarey ones! I bought Saw and The Grudge and they were both pretty good.
Also liked Finding Neverland! I could go on and on! And don't forget Waking Ned Devine! A must see!