Cheaper by the Dozen is a 2003 American comedy-drama film about a family of fourteen, including the parents. It features a family of twelve children (seven boys and five girls). The screenplay was written by Craig Titley (screen story), Sam Harper, Joel Cohen and Alec Sokolow; the title was borrowed from the biography Cheaper by the Dozen by Frank Gilbreth, Jr. and Ernestine Gilbreth, but other than the title and the concept, the film bears no resemblance to the book. The film is directed by Shawn Levy who helped produce the sequel Cheaper by the Dozen 2.

When Tom Baker (Steve Martin) gets his dream job at his alma mater, Northwestern University, as the football coach, it means that the family will need to move from the country to the city. The kids are all very displeased. His wife, Kate, (Bonnie Hunt) achieves her dream of having her book, Cheaper by the Dozen, published, so she goes on a book tour, leaving Tom alone for an intended two weeks with all the kids.