I've received a lot of queries from people wanting me to track down movies for them. Sorry, but I no longer have the time to do this. Please try to find them yourself, using some of these resources:
For people trying to locate a movie based on plot elements or other sketchy information, your best best is to post to the rec.arts.movies.misc newsgroup; chances are pretty good that somebody reading the group has seen the movie you're talking about. You can post and read news through Google Groups if you don't have any other access to newsgroups.
I've included links to Amazon.com, where I can find them. Google should be able to help you find other alternatives, especially local ones.
If you are looking for in-depth information on a particular movie, or want to search for movies which some individual is associated with, the Internet Movie Database has data on almost every movie ever made. The All-Movie Guide is also very good, and there are even more online film databases listed at Wikipedia.