“Every frame has something unnerving in it,” Patton Oswalt says in the trailer for Chain Reactions —a new documentary about the enduring influence and impact of 1974’s The Texas Chain Saw Massacre . Tobe Hooper’s grisly classic has often been imitated and has spawned some regrettable sequels and remakes , but the original remains a uniquely terrifying product of a very specific time and place, not just in pop culture, but also in the realms of independent cinema.

A new trailer for Chain Reactions is here, and it gives you a good idea of how it’s structured, focusing on five Texas Chain Saw fans in particular. Along with Oswalt, there’s Stephen King, Takashi Miike (director of Audition and Ichi the Killer ), horror scholar Alexandra Heller-Nichols, and Karyn Kusama (dire

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