Responding to "What was it about the film that made you think that?"
The film starts off with shots of lone animals standing silent on barren grounds, depicting lives of isolation and boredom. When it gets to Nenette, we are shown an obese orangutan spending day after day in a cement & wire enclosure. They show no interplay between Nenettte and the keepers, and no enrichment activities.
I volunteer at the National Zoo in Wash DC, and observe our orangutans on a regular basis. There is a constant effort to supply enrichment activities and equipment, and they go outside to climb when temps are over 42 farenheit. The movie showed none of that for Nenette.
My friend and I left the movie disturbed at the lack of stimulation in Nenette's life, and dismayed that the Paris zoo is portrayed as an urban institution that is only interested in putting animals on display for amusement. We got no sense of their work in animal conservation or in education for their visitors.
It is a very sad movie. I felt it was a huge negative for the zoo.