<P> As with A Bug's Life and Toy Story 2, a montage of "outtakes" and a performance of a play based on a line from the film were made and included in the end credits of the film starting on December 7, 2001 . </P> <P> After the success of the 3D re-release of The Lion King, Disney and Pixar re-released Monsters, Inc. in 3D on December 19, 2012 . </P> <P> Monsters, Inc. was released on VHS and DVD on September 17, 2002 . It was then released on Blu - ray on November 10, 2009, and on Blu - ray 3D on February 19, 2013 . </P> <P> Monsters, Inc. ranked number 1 at the box office on its opening weekend, grossing $62,577,067 in North America alone . The film had a small drop - off of 27.2% over its second weekend, earning another $45,551,028 . In its third weekend, the film experienced a larger decline of 50.1%, placing itself in the second position just after Harry Potter and the Philosopher's Stone . In its fourth weekend, however, there was an increase of 5.9%, making $24,055,001 that weekend for a combined total of over $525 million . As of May 2013, it is the eighth - biggest fourth weekend ever for a film . </P>

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