“It had long been thought that we were the only creatures on Earth that used and made tools. ‘Man the toolmaker’ is how we were defined… and here was [chimpanzee] David Greybeard using a tool.”

Travel back to Tanzania’s Gombe National Park in the early 1960s with the help of more than 100 hours of unseen 16mm footage. This is the place and time where 26-year-old Jane Goodall patiently observed a troop of chimpanzees. Her groundbreaking field work, then captured by Dutch wildlife filmmaker Hugo van Lawick for National Geographic, redefined humanity.

Jane, the result of a 2014 rediscovery of van Lawick’s footage, is a critically acclaimed documentary from filmmaker Brett Morgen. The clip above is a first look at the film, which will be in select theaters from October 20, 2017. Below, the trailer:

Read more about our favorite primatologist, ethologist, anthropologist, conservationist, and world-renowned animal rights activist in three smart picture books for kids: Me… Jane, I am Jane Goodall (Ordinary People Change the World), and The Watcher: Jane Goodall’s Life with the Chimps.

Related watching: Jane Goodall inspires kids at Berkeley’s Redwood Grove and The Story of Jane Goodall and Her Chimps.

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