While casting high school kids for a movie in Maine, Jennifer Venditti encountered an intelligent, articulate 15-year-old outsider named Billy Price (pictured). She found him so compelling that she made him the focus of her documentary film debut, and picked up just about every top award worth having on the festival circuit last year. "Billy the Kid" (★★★★, unrated but suitable for all audiences) is a raw, touching, unfiltered look at the teenage angst that Hollywood usually turns into brain-dead comedy. Venditti shadowed Billy over the course of eight days, digging into his personal hardships (he has emotional issues), his first brush with exhilarating puppy love (a crowd of streetcorner idlers applauds after he kisses his girl) and a subsequent swerve into heartbreak. It's a deceptively simple slice of life that will resonate in the soul of everyone who miraculously survived adolescence. Venditti will be in attendance Sunday to answer questions after the 5:30, 7:15 and 9 p.m. performances, and again on Monday after the 5 and 9:45 p.m. shows. (Today- Feb. 15, Parkway Theater, 4814 Chicago Av. S., Mpls., 612-822-3030.)