Vaxxed investigates claims that the US Centre for Disease Control and Prevention manipulated and destroyed data on an important study linking autism to the Measles-Mumps-Rubella vaccine.
The film's claims have been widely discredited, and labelled anti-vaccination propaganda.
Spokeswoman for Vaxxed in New Zealand, Truly Godfrey, told Newsroom they would continue to show the movie. She said a screening was taking place in Nelson tomorrow night.
She said Christodoulou contacted the group and offered to screen the movies. Then he told her there had been around 40 complaints, and private security would be needed at each location in case of protesters.
Christodoulou said he had contacted police as a courtesy to let them know about the screenings.
The screenings were to occur at Bridgeway Northcote Point, the Monterey in Howick, Rialto Tauranga and a cinema in Upper Hutt.