The Last Trimate (2008)

Narrated by Mel Gibson, The Last Trimate is a compelling account of the work of Birute Mary Galdikas -- who, alongside Jane Goodall and Dian Fossey, is one of the three formidable women to have dedicated their lives to the great apes of the world -- she highlights the plight of the elusive 'red ape' and offers some hope for their survival as their very habitat is decimated at a startling rate.