A lot of potential, but kind of petered out towards the end...
There was a fantastic premise whereby the contents of the film about Columbus and the Conquistadors mixed indelibly with the context of hardship for local people in Bolivia where they are filming. The passion for the movie-within-a-movie's message amongst some of the fictional actors is put to the challenge when they have to react to the real hardship of the extras. The cynical focus of the film industry on money puts the question of hypocrisy in the light of their film highlighting the evils of conquistadors who exploited the people for gold.
When the leading native actor, whose part is central to the movie, becomes a leader in the local demonstrations which are being violently repressed, the filmmakers are put in a real quandary.
However, from there on the film seems to be unsure of where to take things yet. We get a bittersweet ending where we are supposed to ponder what we've learnt, but it's not terribly satisfying. Needless to say though, the whole film is fantastically acted and fantastically shot with great dialogue. But the ending is a very important part of a film and this just seemed to run out of steam.