When I think of these genres I automatically think of..
1. Adventure - Indiana Jones
2. Drama - The Shawshank Redemption
3. Romance - Titanic
4. Science Fiction - Alien
5. Action - Die Hard
6. Fantasy - The Lord of the Rings
7. Comedy - Shaun of the Dead
8. Horror - The Excorcist
9. Animation - Steamboat Willie
10. Comic Book - Iron Man
11. War - Saving Private Ryan
12. Shitty Sequel - Jaws: The Revenge
13. Great Sequel - The Empire Strikes Back
14. Unnecessary Sequel - Alien: Resurrection
15. Shitty Remake - Psycho (98)
16. Great Remake - The Thing (82)
17. Unnecessary Remake - Let Me In (10)
Great list, I love the fact that 'Shitty' and 'Unnecessary' are genres.