The Collaborative International Dictionary of English v.0.48:

Moving picture \Moving picture\
   same as motion picture.
   [PJC]

WordNet (r) 3.0 (2006):

moving picture
    n 1: a form of entertainment that enacts a story by sound and a
         sequence of images giving the illusion of continuous
         movement; "they went to a movie every Saturday night"; "the
         film was shot on location" [syn: movie, film,
         picture, moving picture, moving-picture show, motion
         picture, motion-picture show, picture show, pic,
         flick]