motion-picture fan vs watcher

motion-picture fan and watcher both are nouns.

Word	Noun	Adjective	Verb	Adverb
motion-picture fan	Yes	No	No	No
watcher	Yes	No	No	No

As nouns, watcher is a hypernym of motion-picture fan; that is, watcher is a word with a broader meaning than motion-picture fan:

motion-picture fan: someone who goes to see movies
watcher: a close observer; someone who looks at something (such as an exhibition of some kind)

Other hypernyms of motion-picture fan include looker, spectator, viewer, witness.

motion-picture fan (noun)	watcher (noun)
someone who goes to see movies	a guard who keeps watch
	a close observer; someone who looks at something (such as an exhibition of some kind)
	a person who keeps a devotional vigil by a sick bed or by a dead body