The original, 1970s, Rollerball is free on Prime.

Last time I watched it, I was probably a kid, and all I remembered about it was that it was about a future with increasingly violent popular sports and cool scenes of battle and death.

Watching it today, I realized there was a lot of important meaning in it. It's a warning about a future dystopia, and it's the sort of dystopia that, in many respects, we are seeing the beginnings of right now.