The much anticipated trailer for the documentary, which delves into the former rugby star's life, has been released.
The doccie, which is titled Joost: Spel van Glorie (Game of Glory) is set to be released at the Silverskermfees in Cape Town from 27 until 30 August.
It's been reported that Joost, who was diagnosed with motor neuron disease will attend the premiere, which was directed by investigative journalist Odette Schwegler.
*Picture: Twitter
Watch the trailer here: