Slipknot: Day of the Gusano

Slipknot: Day of the Gusano documents not only the masked band's Knotfest Mexico City performance but also the lives of the band's fans. Better known as "maggots," the group's fans are some of the most loyal in the metal world. The film captures "the chaos, excitement and community" that the Iowa-based band has cultivated over the past 20-plus years. The film screens at 7:30 tonight at the Capitol Theatre. Tickets are $12.50. (Niesel)