In the movie "Earth Minus Zero," Rhonda Shear plays the character Penny, bringing her vibrant energy and comedic talent to the role. The film stars Pat Morita, known for his iconic role as Mr. Miyagi in "The Karate Kid" series, and Marcia Strassman, who gained fame from her roles in "Honey, I Shrunk the Kids" and "Welcome Back, Kotter." This sci-fi family adventure follows the amusing and fantastical journey of a family as they encounter a shrinking ray and must navigate the challenges of being miniaturized.