These will likely prove difficult...and I'm likely to have to pick at least 2 movies for several categories...
Animated: Hmm...there are so many from which to choose; several of which have been named...I'm actually going to break this into two categories:
>American Animated: Secret of Nimh / Transformers the Movie
>Japanese Anime: Galaxy Express 999 (there are so many others I could choose, but this one really takes it for me...)
Science Fiction: Doctor Who: The End of Time (the Doctor's rage at his fate, and his final words at it really made this one) / Serenity
Documentry: don't really have a movie for this one...if go docu-series, probably either Tales of the Gun or Wild West Tech
Horror: hmm...maybe the Cube or Resident Evil series, or perhaps Dracula: Love Never Dies...
Action: Hmm...likely anything with Jason Statham in it? Particularly the Transporter series and Doomsday?
Adventure: Probably the Indiana Jones series here, particularly The Last Crusade
Fantasy: The Lord of the Rings trilogy
Western: If I had to choose just one, it would likely be The Good, the Bad and the Ugly followed by Tombstone, but there are many great choices...
Classic: Now this is really hard...Captain Horatio Hornblower / Casablanca / The Maltese Falcon / Mr. Smith Goes to Washington / Sergeant York / Captain Blood / The Sea Hawk / To Kill a Mockingbird / It's a Wonderful Life are all films I really love...I'm not sure I could choose just one...
Drama: What Dreams May Come
Musical: not really in to musicals...did enjoy Little Shop of Horrors though, and I think there was one other I really enjoyed, but it slips my mind at the moment...
Comedy: again, hard to choose...Mel Brooks films, Monty Python films, Dr. Strangelove, etc. are all favorites for me...
Romance: hmm...think I may split this one as well:
>Animated Romance: Tenchi Muyo in Love / Tenchi Forever! / Whisper of the Heart
>Live-action Romance: The Princess Bride
Space Opera: Star Wars (all of them)
Ruger