Undefeated is the Oscar-winning documentary directed by Daniel Lindsay and T.J. Martin, the latter of whom is a Seattle native and the first African American director ever to win an Oscar for a feature-length film. Chronicling a year in the life of a high-school football team—the Manassas Tigers of Memphis—Undefeated is a rousing sports saga rich with serious (and seriously damning) sociological underpinnings. Tonight’s 7 p.m. screening will be followed by a Q&A session with director T.J. Martin, led by The Stranger’s art critic Jen Graves. (Varsity Theatre, 4329 University Way NE, 781-5755, 7 pm, $10.50)