film over vs blur

film over is not a noun while blur is a noun.

Word	Noun	Adjective	Verb	Adverb
film over	No	No	Yes	No
blur	Yes	No	Yes	No

As verbs, film over and blur are synonyms defined as:

Other synonyms of film over include glaze over.

film over (noun)	blur (noun)
	a hazy or indistinct representation

film over (verb)	blur (verb)
become glassy; lose clear vision	become vague or indistinct
	make dim or indistinct
	make unclear, indistinct, or blurred
	make a smudge on; soil by smudging
	to make less distinct or clear
	become glassy; lose clear vision