Here you can browse the list of categories, and then look at the movies that match that.
Other ways the list is formatted: 
Categories I like:
African-American Movies (575)
Cerebral Movies 1813 Critically-acclaimed African-American Movies 3359 Critically-acclaimed Cerebral Dramas 4052 Critically-acclaimed Cult Sci-Fi & Fantasy 3079 Critically-acclaimed Exciting Sci-Fi & Fantasy 2396 Critically-acclaimed Gay & Lesbian Biographical Movies 4852 Critically-acclaimed Gay & Lesbian Crime Movies 3002 Critically-acclaimed Gay & Lesbian Movies 2322
Critically-acclaimed Sci-Fi & Fantasy from the 1970s (1345) Critically-acclaimed Sci-Fi & Fantasy from the 1980s (1382) Critically-acclaimed Sci-Fi & Fantasy on Blu-ray (1557) Critically-acclaimed Sci-Fi Thrillers (3660) Alien Sci-Fi (3327) Alien Sci-Fi based on Books (973) Computers & Electronics 4981