Lists ranking the best movies of all time are nothing new, but whenever a reputable source churns out a new one, it's hard not to pay attention. This time, it's the BBC's list of "The 100 Greatest American Films," a ranking they arrived at by surveying film critics from all over the world.

Many of the entries on the final list are fairly predictable (Citizen Kane lands at number 1, of course), but there's still plenty to discuss and argue about here, particularly when it comes to genre films. Sci-if, fantasy and horror cinema make up a good chunk of the list, and even though we might accept that this is a totally subjective ranking from people whose tastes vary, it's easy to drum up discussion based on these results.

The highest-ranking genre film on the list is Stanley Kubrick's 2001: A Space Odyssey, which came in at fourth place, outranking films like Psycho, Casablanca and Chinatown. Next on the list, as far as genre is concerned, is the surreal David Lynch masterpeice Mulholland Drive. Other entries include The Wizard of Oz, Star Wars, Jaws, Back to the Future and more.

Head over to the BBC's site to check out the full list, and let us know which genre films you would've included.

(Via BBC)