What the Popcorn Time devs did was simply amazing. It had a Netflix-like interface plus a huge selection of content that you could watch right away. The industry should learn from these guys.
Just make your content available, easy to obtain and people will pay for it. It's that simple. There's no reason, in 2018, that I cannot go online and legally stream/download any movie/TV show I want. Classics, old movies, 90s movies, whatever. Just make it available at a reasonable price, in a easy to use UI and people will pay. How is that hard to understand?