I live in Chile, where the movie happens. I have also followed Andres Wood in his career as a Director and I must say that this is his most mature, rounded and strong piece of work.
The Movie is centered in the social phenomena that happened in the last days before the Coup in 1973. Now the movie is incredibly accurate from the Costume Design, the Cars's License Plates, the expressions, the product brands and graffitis, to the social polarization, violence and killings. As remarkable as the Production is the honesty of the director, who could have easily fall into contaminating his movie with political propaganda, instead he kept delightfully accurate.
Even though for those who knows the history, the devastating feeling is all around, the movie centers in the social experiment led by a priest who was the principal of a high class school, who takes into the school some poor mestizo children.
Machuca is one of this children's who begins a friendship with a white rich children.
The story itself works as a metaphor for the innocence of the people in that time. innocence that was lost over and over.