If you go to HOLLIS+ (HOLLIS only) and just search on the word DVD and you should get 55,000+ hits. The percentage of our films that most people would probably like seeing is pretty low, and tend be be obscured by thousands of esoteric items. As you mention movies, I am guessing that you are looking for films for your own enjoyment, rather than edification. There's a lot there, just try searching DVD and "Alec Guinness", or and "Kung fu", or and whatever. Practically speaking, you could also go to Lamont Level A and browse their DVD collection on the shelf. I think they have the biggest physically browse-able collection.