Every year, critics and cinegeeks head to Austin, Texas, to sample a smorgasbord of lo-fi indies, thought-provoking docs, psychotronic midnight movies and oh-so-much-more at the annual SXSW Film Festival. From March 13-21, festgoers will have their pick of early sneak peeks at upcoming releases (the Will Ferrell/Kevin Hart comedy Get Hard, the Brian Wilson biopic Love & Mercy), choice Sundance offerings (Rodney Ascher's The Nightmare, the extraordinary Kurt Cobain portrait Montage of Heck) and dozens of works from potential next-big-thing directors to check out in between queso-filled meals.

The question, however, is: what are the ones you simply can't afford to miss? After scanning the schedule and breaking down players' stats, we've come up with the 15 movies that SXSW-ers have to catch during their time in the Lone Star state's unofficial capital. These are the all-over-the-map music documentaries, the micro-budgeted flicks and the indescribable mind-blowers that have us ready to mess with Texas.