Theater productions are held regularly in the school's small Kraft Theatre. Belmont Hill puts on a total of seven productions over the course of the school year including three middle school productions, three upper school productions, and a senior-directed production each spring. These performances are put on in collaboration with the Winsor School and/or Dana Hall School, two of Belmont Hill's sister schools. Performances during the 2009-10 school year included "The Bridge to Terabithia", "The Curious Savage", "The Foreigner", "The Music Man", and "Rent".