This review may contain spoilers. I can handle the truth.
How do you film something you have no access to? Chris Marker's fake documentary is not only his take on the political situation in 1970's South America, but also a director's statement: this could happen anywhere.
The stunning final shot revealing that what we just witnessed happened in Paris and not in the context of some southamerican dictatorship works also as evidence of one of cinema's greatest possibilities: that of creating a specific space, time, and ultimately meaning out of something completely different. Everything is a lie, but also true in the movie's own narrative.
A true 20-minute masterpiece.