T he following are capsule reviews of this week's screenings at the AFI Film Festival of Los Angeles. Screenings take place at the Los Feliz Theater, 1822 N. Vermont Ave., Hollywood, except where noted. Tickets and information: (213) 520-2000 from 10 a.m. to 6 p.m. TUESDAY
"The Roots of Blood" (Mexico, 1979, 8:30 p.m., Barnsdall). A political tract concerning Mexican activists who organize against the oppressive conditions in a local clothing factory. Aided by a former local--a Harvard law school graduate who's temporarily shucked off his heritage--they fight the good fight against formidable odds. Writer-director Jesus Salvador Trevino draws from familiar cliches, creating an unconvincing portrait of altruistic crusaders and loutish bosses.