This undated publicity photo released by courtesy of HBO shows a scene 

This undated publicity photo released by courtesy of HBO shows a scene from the documentary film, "An Apology to Elephants." Actress Lily Tomlin narrates the film.  The film is an unabashed polemic, calling for improved treatment of elephants in zoos and an end to the use of the animals as entertainment, which the film contends must invariably involve abuse. (AP Photo/HBO, Lisa Jeffries/pawsweb.org)
Associated Press
This undated publicity photo released by courtesy of HBO shows a scene from the documentary film, "An Apology to Elephants." Actress Lily Tomlin narrates the film. The film is an unabashed polemic, calling for improved treatment of elephants in zoos and an end to the use of the animals as entertainment, which the film contends must invariably involve abuse. (AP Photo/HBO, Lisa Jeffries/pawsweb.org)
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