WITH HIS SUPERLATIVE mental resources and boundless energy, Craig Baldwin could have been a conspiracy theorist, a bio-electromagnetic scientist, a history professor, a rabble-rousing agitprop activist, or a stand-up comedian. Instead, by becoming a ferocious experimental filmmaker, Baldwin takes on all of these roles at once without ever having to leave his Mission District basement-laboratory. His works, including Tribulation 99 and Spectres of the Spectrum, are dense verbal and visual constructs of found footage and filmic flotsam. They are simultaneously jocular and alarming, exposing the way the military industrial complex stupidly brought the planet to the brink of destruction, and how we can use our imaginations to turn it all around. Now Baldwin is set to take over the San Francisco Cinematheque with "Science in Action! A Craig Baldwin Retrospective," a three-night stand presenting the filmmaker in person along with his very nearly complete filmography (1978-present). All shows are capped off by live performances, media-making, and oddities and ephemera from Baldwin's cavernous "Other Cinema" archives. The grand finale includes a sneak peek at his next film, Mock-Up on Mu, which Baldwin breathlessly describes as "a compilation narrative and a manic montage allegory about a famous science fiction writer who became a cult leader." See Rep Clock for show times. (Patrick Macias)