1Jn 2:15 Love not the world, neither the things that are in the world. If any man love the world, the love of the Father is not in him.
1Jn 2:16 For all that is in the world, the lust of the flesh, and the lust of the eyes, and the pride of life, is not of the Father, but is of the world.
1Jn 2:17 And the world passeth away, and the lust thereof: but he that doeth the will of God abideth for ever.
Mat 5:28 But I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart.
Did the Holy Spirit make the horror movie, and is God against violence, and the offending of another person.
It would seem like anything that God does not approve of we should not watch, or do, or think.
Php 4:8 Finally, brethren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good report; if there be any virtue, and if there be any praise, think on these things.
We say it is entertainment and we do not endorse it ourselves as happening in reality, but it would still seem like it is wrong for we are to think on things that are good.
1Ti 6:10 For the love of money is the root of all evil: which while some coveted after, they have erred from the faith, and pierced themselves through with many sorrows.
The love of money is the root of all evil for it neglects the poor and needy, which is how God created the world to operate, and love works no ill towards their neighbor, therefore love is the fulfilling of the law.
The things that the world does is to make money, and they can never get enough money, with them being millionaires, billionaires, but it is not enough, and they still rip and gyp, even the very people that made them rich, and heap and heap to themselves, which God said this last generation will devour the poor from off the earth, and the needy from among men, and we see they are doing a good job of it.
Money from entertainment, movies, shows, sports, music, video games, or any other kind of entertainment, but the thing is if a person watched movies all year long they are no better for it, and their lives not improved, and money spent that is not a necessity, all the while people need help financially.
So the saints can say it is not a sin ignoring the immorality of it, but the spending of money on the entertainment that neglects the poor may be worse, for the love of money, and material things, for wants, is the root of all evil, for it neglects the poor and needy.
1Jn 2:1 My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous.
But I do not like coming across as holier than thou, and all sin can be forgiven, but I think the biggest problem with entertainment is the money involved with it when it is not a necessity, and people do not need it to survive, and neglects the poor and needy.