Thompson, best known for the "Back to the Future" films and the sitcom "Caroline in the City," plays a stay-at-home mom who becomes mayor of Bridgeville and tries to maintain her status as the town's leading cupcake maker.
Pires will direct the film. He co-wrote it with Art D'Allesandro, a screenwriter, director and producer.
Feature filmmaking is rare in Delaware, in part because the state doesn't offer any financial incentives to moviemakers.
Information from: The Daily Times of Salisbury, Md., http://www.delmarvanow.com/