The Battle of #Chile: The Struggle of an Unarmed People is a Chilean-Cuban documentary film by Chilean filmmaker #PatricioGuzmán, in three parts: The Insurrection of the Bourgeoisie (La insurrección de la burguesía 1975),
The Coup d'état (El golpe de estado; 1976)
and Popular Power (El poder popular; 1979).

In 1996, Chile, Obstinate Memory follows Guzmán back to Chile as he screened the banned three part documentary to Chileans who had never seen it before.

https://homevideo.icarusfilms.com/if-boc

Icarus Films: The Battle of Chile