Director Jerry Rees described the main message is the film asks is: "what would it be like to be an appliance, and feel good when you're useful, and help people..."? He also explained that the film's themes included a "fear of being abandoned and wanting to be reunited with somebody that you love..."—the opposing forces of feeling like you're worthless and the joy of redemption. Another important notion was that of "valuing things from the past and taking them...into the future", both in terms of objects and relationships. All of the main characters have personalities that are unique twists on the appliance functionality.