In the International version, the slogan 'We Scare Because We Care' doesn't appear on the TV set. However, Waternoose still says the slogan. Also, many other picture inscriptions (like the title of Waternoose as chairman of Monsters, Inc.) are omitted from the TV advertising and from other ad posters seen later during the film.
For the Blu-Ray release, the Snowman's snow cones have been digitally altered to look plain yellow, as opposed to the original version, which looks rather like snow that had been urinated on.
The 3D version, as well as the 2013 DVD & Blu-ray releases, replaces the Disney logo with the more current logo.
One shot of Sulley trying to tell Boo to go to sleep was replaced for the non-English versions of the film. This was because his hand gestures, miming the phrase "You go to sleep", are so closely related to the individual words (for example, holding up two fingers for the word "to") that dubbing the shot into other languages would have proved too difficult.
Foreign language versions of the film feature visual text (ie: newspaper headlines, street signs) written in languages in which the film is dubbed, in order to eliminate the need for subtitles. In addition, universal icons are put in place of English text, such as a pedestrian traffic light that features a multi-fingered hand (in place of "Don't Stalk") and a two-headed beast (instead of "Stalk"). It also appears that in order to minimize the "poorly-dubbed kung-fu movie" syndrome, all the lip synch is completely redone for foreign language releases.
Much as they did with _A Bug's Life_, Pixar recomposed various shots this movie for the full screen (1.33:1 aspect ratio) presentation on home video. Characters and objects were rearranged in order to better make use of the narrower frame.
Starting 7 December 2001 outtakes were added to the end credit sequence of the theatrical release, showing bloopers such as Sulley tripping over the top scarers, and a new scene at the very end of the credits in which Mike makes good on his promise and produces the company play, "Put That Thing Back Where It Came From or So Help Me", a musical version of the entire film. Both endings are available in the collectors edition DVD: the original credits are on the widescreen version of the film, the bloopers and company play on the fullscreen version.