A Hollywood documentary starring Dame Jacinda Ardern is reportedly in the works.

The feature-length film, produced by Madison Wells studios, is set to follow Ardern from the moment she receives the Labour Party nomination to the birth of her child to her resignation in 2023.

Los Angeles entertainment reporter Sean Mandell says there had been talks of other plans for the movie before it was finalised.

"It will also have Dame Jacinda's participation - she has said one of the reasons why she is participating is because there aren't any dollars from New Zealand's Film Commission."

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