By Sarah Wilson and Jonathan Head BBC NewsFilms director Martin Trittner has said he is not worried about the long-term effects of flu shots.
But he said it was still important to get the message out about the potential risks of flu.
“It is important to have that message out that it is important not to get infected,” he said.
He said it had to be done as a precautionary measure, as there was a potential for influenza to become more common in the coming years.
“This is something that has to be monitored and we will do that,” he told the BBC.
He added that there was no evidence that flu vaccinations made people more infectious, and said that the flu shot would not be effective in preventing the disease.
“I have seen no evidence to suggest it prevents infection.
It is an individual thing.
It’s not going to stop someone from getting influenza,” he added.
Dr Trittners comments came as another movie studio in the UK said it would not make a film about the flu.
The Motion Picture Association of America said it did not think making a film on the virus was a good idea.
“If you’re going to make a movie about a new or emerging disease, you should know what it is,” it said in a statement.
“In the current climate of fear, fearmongering and misinformation, the best way to combat this pandemic is to get people vaccinated.”
The movie industry is not the only one to be facing questions about the effectiveness of the flu vaccine.
The American Academy of Pediatrics said it will consider the results of a study which found that flu shots were not effective at preventing the virus.
The vaccine has a “low probability” of stopping the disease in the US, but it is highly effective in Europe and other parts of the world.
It is currently being tested in about a quarter of the US population, but the American Academy is considering whether to make it mandatory in all 50 states.