Movies can be influential in the mentality of people that are addicted to eating movies.
There is danger in watching movies because it is one of the medium used by Satan in influencing the entire world.
1 John 2:15-16 KJV
Movies can create the list of the eyes. There are some movies that came make you lust through eyes and this is one of the danger of watching movies.
II Corinthians 11:3 KJV
The minds of Christians are simple minds an can be corrupted with the ideas you may see in movies.
Below is Bro Eliseo video comment on the topic above