Rules: Don't take too long to think about it. Fifteen movies you've seen that will always stick with you. First fifteen you can recall in no more than 15 minutes.
In no particular order:
1. The Pianist
2. 10 Things I Hate About You
3. Where The Heart Is
4. Nice Girls Don't Explode
5. Harry Potter (all the films)
6. The Matrix (trilogy)
7. American Pie (trilogy)
8. Monty Python and the Holy Grail
9. The Breakfast Club
10. The Princess Bride
11. Enchanted
12. Sleeping Beauty
13. Benny & Joon
14. Romeo and Juliet (1968 version)
15. Weird Science
Note that I actually haven't seen that many movies as of late…