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The movie, They are Us, is set focus on Prime Minister Jacinda Ardern's response in the week following the attacks.
It is set to star Australian actress Rose Byrne who would reportedly play Ardern.
The New Zealand muslim community has come out against the film, saying the focus on the prime minister, rather than the victims, is wrong, and it is just Hollywood profiting off the community's pain.
Ardern said in a statement that plenty of stories from March 15 could be told, and she does not consider hers to be one of them.
RNZ spoke to the executive editor of entertainment magazine Variety, Steven Gaydos, about whether the film will go ahead and how it is being perceived in the United States: