Fact: Stones Throw is the coolest hip-hop label on the planet, having kept turntablism alive since '96. The L.A. undergrand brand, which gave us J. Dilla, Madlib and Doom, is the subject of a new documentary, Our Vinyl Weighs a Ton, which features folks like Questlove, Kanye and Mike D singing praises. It also screens at 6:30pm at the Logan Theatre before this can't miss boom-bap scratch fest. Label founder Peanut Butter Wolf headlines, and the dope J. Rocc cuts up "Some Cold Rock Stuff." Old school hip-hop heads, your attendance is mandatory.