final cut vs motion picture

final cut and motion picture both are nouns.

Word	Noun	Adjective	Verb	Adverb
final cut	Yes	No	No	No
motion picture	Yes	No	No	No

As nouns, motion picture is a hypernym of final cut; that is, motion picture is a word with a broader meaning than final cut:

final cut: the final edited version of a movie as approved by the director and producer
motion picture: a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement

final cut (noun)	motion picture (noun)
the final edited version of a movie as approved by the director and producer	a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement