movie vs motion picture

movie and motion picture both are nouns.

Word	Noun	Adjective	Verb	Adverb
movie	Yes	No	No	No
motion picture	Yes	No	No	No

As nouns, movie and motion picture are synonyms defined as:

movie and motion picture: a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement

movie (noun)	motion picture (noun)
a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement	a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement