Why are there very few convincing New Zealand accents from people who aren't New Zealanders?
Some accents may seem easier than others, but is the kiwi twang hard for even some of the world's best actors to get their tongue around?
Emile speaks to Perry Piercy, a voice coach who helps actors develop accents. Her work includes the entire cast of the Luminaries, as well as the great American actor John Lithgow in the Rule of Jenny Pen.
She also designed a made-up language for the film Nude Tuesday,
