According to rotten tomatoes:
Equal parts hilarious, poignant, and heartbreaking, Project Nim not only tells a compelling story masterfully, but also raises the flag on the darker side of human nature.
From the Gate Website:
MAN ON WIRE director James Marsh brings us another incredible documentary in PROJECT NIM.
This is the unforgettable story of Nim Chimpski, a loveable chimpanzee who was taken from his mother in the early 1970s to be used in a revolutionary and controversial scientific research project. The aim: raise a chimp as a human being and solve the nature-versus-nurture debate once and for all.
The result: lots of laughs, buckets full of tears and one confused little monkey. PROJECT NIM is by turns a shocking, revelatory and deeply humbling film that subtly challenges mankind’s appetite for playing God.