WATCH: The Jim Carrey documentary that will leave your jaw on the floor

In 1999, Hollywood set out to tell the story of legendary comedian and writer Andy Kaufman in the movie 'Man on the Moon.'

But what the film failed to showcase was the madness behind-the-scenes and what it really took for funny man Jim Carrey to fully embrace playing the role of his idol.

Embodying the method of acting that had Jim stay in character on and off set, for nearly 20 years movie execs withheld behind-the-scenes footage to avoid people thinking Jim was less of a likable person. So much so that they were worried that members of the cast and crew would sue the production for mental stress.

ALSO WATCH: Jim Carrey's cringe-worthy interview at New York Fashion Week

Watch Jim Carrey like you've never seen him before.