I'm not the kind of person who can fire off movie lines from an impressive catalog of movies. But for those with the knack for memorizing lines from movies, you can type those lines in at movieclips.com and see the clip that goes with the quote. The site has worked with several movie studios to get the clips online and the quality of the clips is outstanding.
I typed in "my name is inigo montoya" and found this clip from one of my all-time favorite movies , The Princess Bride. Honestly, I could spend hours on this site browsing through all the clips. Check it out and let me know what your favorite movie quote is!