Cheaper by the Dozen is a 2003 American comedy film directed by Shawn Levy. It is a remake of the 1950 film of the same name. Both films were inspired by the semi-autobiographical book Cheaper by the Dozen by Frank Bunker Gilbreth Jr. and his sister Ernestine Gilbreth Carey. It stars Steve Martin, Bonnie Hunt, Hilary Duff, Tom Welling, and Piper Perabo, alongside Kevin G. Schmidt, Alyson Stoner, Jacob Smith, Forrest Landis, Liliana Mumy, Morgan York, Blake Woodruff, Brent and Shane Kinsman, Paula Marshall, and Alan Ruck in supporting roles. Outside of a passing mention of the Gilbreth name, the film has little connection with the original source material.