Now in its 13th year of telling it like it is, SF Docfest is running for two weeks at the Roxie and the Oakland School for the Arts. It's a good lineup for pop-culture aficionados, including AJ Schnack and David Wilson's We Always Lie to Strangers, about the small town of Branson, Mo. Famous for its 100+ musical and variety shows that attract several million tourists annually, Strangers examines how the traditionally conservative town is dealing with both the economic crisis as well as the evolution of the broader American culture. Though Branson shows are family-friendly and curse-free, enough "fucks" are thrown around offstage to potentially earn Strangers a solid R-rating. Born and raised in Restricted territory is Michael Nirenberg's Back Issues: The Hustler Magazine Story, which includes interviews with not only both Hustler founder Larry Flynt and the man who attempted to assassinate him, but also the final interview with Screw Magazine's oddly lovable publisher Al Goldstein. But most exciting of all may be Heavy Metal Parking Lot director Jeff Krulik's Led Zeppelin Played Here, in which Krulik investigates the urban legend that Zeppelin performed in a New Jersey community center gym for 50 people on the night of Nixon's 1969 inauguration. At DocFest, unconfirmed and highly improbable truth is always stranger than fiction.