I've seen most movies based on games, and the quality ranges from passable to terrible. You can argue for a few good ones, but taking even great games and turning them into films has proven much harder than it seems like it should be.

Our art form is already cinematic and immersive and all those fun buzzwords, right? Why is this so hard?

This video from Rossatron on YouTube is an informative, sober look at why most game movies go bad, before going into great detail about what it takes to do them well. It's 12 minutes long, but it does a great job of making many tricky subjects about adaptation and the two different art forms clear and easy to understand.

Also, now I really want a good Hotline Miami film.