One of the major issues is the cost of going to the movies. In the past fifteen years it has gone from $5 to $12 where I go and it is uniform regardless of what you see.
I enjoy movies, but at $12 a ticket it has become more of an occasional social event as opposed to easy solution to use an evening. For example, Green Room is an intense thriller, but many people balk at spending the same price to see it as they would Captain America: Civil War. Most people I know are content to wait and watch on DVD or Blu Ray on their 55" or larger televisions for many comedies and dramas. What gets them into a theatre are the spectacle $100+ million blockbuster type films that make use of the big screen.
Without the international market hollywood would be very concerned about dwindling attendance (covered up by high ticket price) and not sure how long China and others will prop current model up.
