"Cheaper by the Dozen" is a family comedy film based on the 1948 book by Frank B. Gilbreth Jr. and Ernestine Gilbreth Carey. The story follows the lives of the Gilbreth family, which consists of twelve children and their parents, Tom and Kate. The film explores the challenges and humorous situations that arise from managing a large household. The narrative highlights themes of family dynamics, love, and the importance of teamwork. As the parents juggle their careers and family life, the children learn valuable lessons about responsibility and cooperation. The film showcases the joys and chaos of raising a big family.