“Jessica has got that extraordinary voice and that incredible quality that just makes you fall deeply in love with her,” said producer Robyn Kershaw, who did the first workshop on the musical 20 years ago.
“There is something quite delicious and sweet and beautiful about Jessica.”
Ernie Dingo has also been cast in the film about the adventures of young Aboriginal boy Willie and his girl, Rosieset in Broome, 1965.
The original stage musical was a hit in 1990.
Blackfella Films’ Rachel Perkins will direct the film while Bangarra Dance Company artistic director Stephen Page is choreographer.
Filming is to begin in August in Broome.