I'm curious as to how big of crowds this movie is going to attract...
While I have great interest in the subject, I wouldn't see it ONLY because I couldn't handle it. I adore my cat, but I have to change the channel when the abused animals commercial comes on. I just cannot take it.
I once asked a keeper (who was taking notes at the AK gorilla exhibit) how they could tell if the gorillas were happy or suffering depression etc. Her answer really surprised me in that she said, "We can't."