Born and raised in Swaziland on the far edges of the British Empire, Malla Nunn attended a boarding school specially set up for 'mixed race' children. The students at the school spent their time learning the Bible, breaking the rules, and then lying about it.

In common with most colonial institutions, stealing, fighting, and violence were common. It was in this charged atmosphere that Nunn developed a fascination with bad behaviour, risk and punishment. After her family migrated to Australia to escape apartheid, Nunn graduated with a double degree in English and History and then earned a Master of Arts in Theater Studies from Villanova University.

Faced with a life of chronic under-employment, she dabbled in acting and screenwriting. She wrote and directed three award-winning films, including Servant of the Ancestors, which won Best Documentary awards at film festivals in Chicago, Los Angeles, and Zanzibar, and was shown on national television in Australia.

She married in a traditional Swazi ceremony. Her bride price was eighteen cows. She now lives and works in a weatherboard house with a tin roof and an olive tree in the garden in Sydney, Australia.