Oscar-winning writer Green Book has apologized for a 2015 tweet in which he said he saw Muslims in New Jersey celebrate the September 11 attacks.
Nick Vallelonga tweeted his support for Donald Trump, who said he had seen "thousands and thousands" cheer – a widely discredited statement.
Vallelonga wrote that Trump was "100% correct", but now he said sorry "for the damage I caused".
He won a Golden Globe Award on Sunday, and the Oscars are now six weeks away.
- Trump "wrong" on the cheers of 9/11
Vallelonga wrote Green Book on the story of his father Tony Lip, who led the concert pianist Don Shirley across the deep south of the United States amid racism of the years' 60.
Viggo Mortensen plays the chauffeur, while Mahershala Ali, a Muslim, plays Shirley. But his chances of Oscar may be influenced by a series of recent controversies.
Shirley's family criticized the film, saying it is full of "lies"; the co-writer and director Peter Farrelly apologized after an old interview emerged in which he spoke of the flashing of the genitals; and Mortensen said he was sorry for using the word N in an interview.
The latest controversy comes after the re-emergence of the tweet Vallelonga sent following a rally in November 2015, in which President Trump – then presidential candidate – said: "I watched in Jersey City, New Jersey , where thousands and thousands of people were cheering while that building was coming down. "
Vallelonga wrote:" 100% accurate, Muslims in Jersey City cheer when the towers have fallen. on local CBS news. "
There has never been evidence to support Trump's claim that "thousands" were celebrated after the 2001 attacks.
A clip emerged from a WCBS correspondent at the time the police he found eight men celebrating in a building in New Jersey, but he did not show the men's movies.
In a statement by Hollywood Reporter, Variety and other sites, Vallelonga said, "I want to apologize, I've spent my life trying to bring this story of overcoming differences and finding common ground on the screen, and I'm incredibly sorry for all those who are associated with Green Book.
& # 39; This lesson is not lost to me & # 39;
"I apologize in particular for the brilliant and kind Mahershala Ali, and members of the Muslim faith, for the bad that I caused. I'm sorry for my late father who changed so much from the friendship of dr. Shirley and I promise that this lesson will not lose me.
"The green paper is a story about love, acceptance and overcoming of barriers, and I will do better."
Participant Media, who produced the film, also issued a statement saying: "We find Mr. Vallelonga's Twitter post offensive, dangerous and antithetical to the values of Participant Media. We reject it bluntly."
La The land producer Jordan Horowitz was among those who criticized the writer on Twitter, defining his comments "too disgusting".