Watching movie depends on the type of movie you are watching, movie defers because there are movies that are inspiring, it teaches, it solves bordomeness, what you watch determines what you become and what influences you.
Some movies can help build your knowledge, some can plant lust, while some can make you sin against God almighty, there are many Christian movies you can see online today that we are supposed to watch and have in our homes and also have them in our phones.
The devil has so destroyed men through movie, because some people believe in thing's they see before you know it they start practicing it.
There are many movies In the world today that makes watching movie look like a sin, because of the nature of the movie, but do not be deceived as a child of God watching movie is not a sin, infact it's one of the things you can use to prevent depression and anxiety, keeping yourself busy will help you not to have negative taught, because it will engage your mind, your eyes, and your attention that's if you watch the right one you are supposed to watch.