Monsters Inc 3D Release DateThe original Monsters Inc is one of the animated movies in the Disney collection to get the 3D rerelease treatment and still is following Finding Nemo 3D, which is due out September 14. Monsters originally was scheduled for January 18, 2013, but the Pixar pic is heading into the Holiday 2012 mix and will now bow December 19, a Wednesday. The 2001 original grossed $256M domestically, and its sequel Monsters University is set for release on June 21, 2013. Last year, the studio had success with its first rerelease venture, The Lion King, which grossed $92M in its 3D form.