Enjoy one "Admit 2" pass to the Music Box Theatre for any regularly priced film, one "free soda" card and one "free popcorn" card. For the last two decades, the Music Box Theatre has been the premiere venue in Chicago for independent and foreign films. It currently has the largest theater space operated full time in the city. The Music Box Theatre is independently owned and operated by the Southport Music Box Corporation. Located at 3733 N. Southport Avenue.