No film festival would be complete without some harrowing tale about the dangers of drugs, and Billy Samoa Saleebey's "Rolling" (at 4:30 p.m. Saturday at the Victoria), a documentary style feature about eight Southern California youths caught in the throes of Ecstacy addiction, fits the bill nicely. Saleebey's camerawork is stylish, and his script is briskly paced and concise until his characters begin their nightly descent into chemical delirium. From there, the movie carefully examines the disorienting highs that serve only as prelude to the inevitable lows.