-- King Corn (2007): Sounds like a tasty breakfast cereal, doesn't it? But in fact, it's a documentary about two college buddies who "plant and grow a bumper crop of America's most-productive, most-subsidized grain [corn] on one acre of Iowa soil. But when they try to follow their pile of corn into the food system, what they find raises troubling questions about how we eat--and how we farm." Screens tonight at 7:15 p.m. and 9:15 at the Red Vic; $5-8.50.

-- Day of the Dead March: Honor loved ones from the other side of the grave. The procession starts at 24th & Bryant, ending up at Garfield Park at the Festival of Altars 8:30 p.m. at 26th & Harrison; free.

-- Masonic / Mason Bates: Juilliard trained composer, whose work has been performed at Carnegie Hall and the Kennedy Center, and local electronica DJ spins tonight starting at 7 p.m. at Varnish Gallery; free.

-- Dilated Peoples: This hip hop outfit's "hard, intellectual grooves" get the floor boards, and your ass, shaking tonight. Show starts at 9 p.m. at the Independent; $20.