Tom and Kate Baker have made many sacrifices in their professional lives in order to raise their 12 children. When Tom is offered a job as a Division I college football coach, he moves the entire pack to a suburb in Chicago. This move shakes up the entire family, but when Kate's memoirs get published, she takes off on a book tour. The lack of parental guidance creates problems for all the Baker kids and chaos ensues.

Originally released as a motion picture in 2003. Based on the novel by Frank Bunker Gilbreth, Jr. and Ernestine Gilbreth Carey. Special features: Sneak peek at "Cheaper by the dozen 2"; deleted/extended scenes; featurettes; storyboard-to-screen comparisons; surprise Easter egg; audio commentary by Shawn Levy; audio commentary by the Baker kids; "Director's viewfinder" featurette (extended).