In case you missed it, Day Of The Gusano premiers Sept.6th, 2017.The documentary film focuses on Slipknot and the music, as well as their fans, or “Maggots.” Footage was recorded at the band’s Knotfest Mexico City show in 2015. The trailer looks tasty. Slipknot already won a Grammy for 2006’s Before I forget. What’s next? We’ll see.