Is anything too offensive for our post-cancel-culture world? When Trump & Elon wield "freedom of speech" as a way to silence their enemies, who's defending unpopular voices? When anti-Zionism, anti-Semitism and Islamophobia can be weapons, how do we decide what's beyond the pale?

John Safran is Australia's Michael Moore, a provocateur and writer whose new documentary is ‘Shut Your Big Fat Mouth’. As a Jew, he interviews neo-Nazis, conspiracists and porn stars to understand what open expression means in a chaotic and hostile world.

'Shut Your Big Fat Mouth John Safran’ premieres Sunday 24 May at 7:30pm on SBS, and streams free on SBS On Demand.