Winterport Open Stage presents a sci-fi spoof for the whole family at the Samuel L. Wagner Middle School, 54 Mountainview Drive, Winterport. Cost: $8; $5 students, senior citizens; $1 discount for those who come dressed as zombies and join the cast on stage during the show’s zombie party scene. Fridays and Saturdays 7:30 p.m.; Sundays 3 p.m. through Nov. 11.