Yes, MOVIES is a Scrabble word!

Letter values in Scrabble US: M 3, O 1, V 4, I 1, E 1, S 1.

Is it a valid word?

MOVIES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

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

Also: moving picture, moving-picture show, motion picture, motion-picture show, picture show.