The Cleveland Institute of Art Cinematheque doesn't shy from controversy. So it shouldn't come as a surprise that tonight at 6:45, it screens a film called Field Niggas. An "immersive documentary," the movie centers on the poor people who frequent the corner of 125th St. and Lexington Ave. in Harlem. A "hallucinatory nocturne," the movie takes its title from a Malcolm X speech. It's preceded by four 4-minute films made by emerging visual artists. Tickets are $7. (Niesel)