Room 237 is a must-see for any film buff, for Rodney Ascher's thrilling, hilarious documentary takes to task Stanley Kubrick's masterful horror The Shining, bringing in 9 fanatics - whose faces we never see - to dissect the film with their crackpot theories. Combining this with clips from Kubrick's other films (chiefly Eyes Wide Shut and 2001: A Space Odyssey), animated maps and clever CG alterations, we get one of the most uniquely intelligent and truly strange dissections of a film ever seen. Whether it's the theory that The Shining is an allegory of the Holocaust, or that Kubrick is secretly telling us that he helped fake the Apollo moon landings, it remains consistently engaging, and absolutely bonkers. A large point of discussion post-release was what the film's angle is; is it championing film criticism, or in fact mocking it? Given the comic nature of these theories, it would appear to be the latter, but it never gets mean-spirited with the representation of its subjects and their ideas, thus it really feels like a celebration of the medium's power to evoke ideas, whether they're certifiably insane or not. See it and never watch The Shining the same way again. Room 237 is available on DVD/Blu-Ray February 11, 2013.