Robin Williams was an award-winning actor, comedian and literally one of the funniest people in the world. "Off stage, I just really felt he was holding himself together".
The film, which premiered at the Sundance Film Festival, features rare footage, including scenes from Williams' stand-up appearances, interviews and even childhood photos.
It's a walkthrough into Williams' life and career narrated largely by the man himself, and his celebrated peers in the comedy circuit, including Billy Crystal, Steve Martin, Eric Idle, David Letterman and his Mork and Mindy co-star Pam Dawber. "But he was the most successful person I know".
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The flow of the trailer itself feels like a roller-coaster ride, much like Williams' life.
"Stand-up is survival, for me that's jazz, that's what I've to do", Williams' voice is heard saying in the trailer. The network describes it as, "A amusing, intimate and heartbreaking portrait of one of the world's most beloved and inventive comedians".
Come Inside My Mind, follows the iconic amusing man through his life and career, until his death by suicide in 2014.
Williams' family is also a focus of the documentary, with his son Zak Williams sitting down for an interview.