This page shows you the list charts. By default, the movies are ordered by how many times they have been marked as a favorite. However, you can also sort by other information, such as the total number of times it has been marked as a dislike.
Seemingly, many of Warhol's "screen tests" do not have IMDB pages, so those are unfortunately missing from this list. I also chose not to include "Flesh," "Trash," "Heat," "Bad" and the Frankenstein/Dracula films, even though Warhol's shadow somewhat hangs over them. (Arguably, those films are more essential than anything found on this list.)
Jeff Keen (1923-2012) was a dazzling DIY filmmaker that doesn't come up too often in discussions -- he doesn't have even one film that is an "official check." His films are generally wordless collages, mixing transformative, stop-motion animation (both drawn and created with objects) and live human mischief (his "casts" seem to be whoever showed up at that night's house party). The speed of his editing is delirious, to say the least. Just climb into a film and pray that you can hold on. He has obvious recurring influences, such as classic comic strips and '50s pulp films. and his films sometimes seem like sequences of old-fashioned, "Coming Soon!"-type movie trailers strung together. Some of them are more political, but the dominant mood is sheer hedonism, and brace yourself for copious, amateur nudity (more "free-spirited" than directly sexual). Exhilirating.
A more formal biography: http://www.screenonline.org.uk/people/id/1359564/index.html