A censored film released in the 1970’s.

The premise is that political prisoners are given the option of carrying out their sentence, or to participate in an asymmetric game to reach the end, at which point they are given the promise of freedom.

Actors are chosen for their political beliefs, including both reactionaries and progressives. So, a lot of scenes aren’t scripted, but rather it’s really how they would behave.

See interview with Peter Watkins here:

https://m.youtube.com/watch?v=jxb0ed9izis