"Green Book" screenwriter Nick Vallelonga has issued an apology for an anti-Muslim tweet from 2015 in which he expressed support for false claims that Muslims were celebrating in New Jersey following the 9/11 terror attacks.
"I want to apologize. I spent my life trying to bring this story of overcoming differences and finding common ground to the screen, and I am incredibly sorry to everyone associated with Green Book," he said in a statement late Thursday.
"I especially deeply apologize to the brilliant and kind Mahershala Ali, and all members of the Muslim faith, for the hurt I have caused," he said.
"I am also sorry to my late father who changed so much from Dr Shirley's friendship and I promise this lesson is not lost on me. 'Green Book' is a story about love, acceptance and overcoming barriers, and I will do better."
Ali, who is Muslim, on Sunday won a Golden Globe award for his role as the real-life piano virtuoso Don Shirley in "Green Book."
The film, which picked up two other Golden Globes and is expected to be nominated for the Oscars, recounts the unlikely friendship between Shirley, who was black, and his driver, Tony Lip (Vallelonga's father), during a concert tour through the deep south in 1962.
Vallelonga deleted his Twitter account after the controversial tweet dating back to November 2015 recently resurfaced on social media.
The tweet came in response to then candidate Donald Trump's claim that he saw thousands of people cheering in Jersey City after the terror attacks.
"@realDonaldTrump 100% correct," Vallelonga wrote at the time. "Muslims in Jersey City cheering when towers went down. I saw it, as you did, possibly on local CBS news."
Participant Media, which co-financed and produced "Green Book," has also released a statement denouncing Vallelonga's tweet.
"We find Mr Vallelonga's Twitter post offensive, dangerous and antithetical to Participant Media's values. We reject it in no uncertain terms," it said.
Earlier this week, the film's director, Peter Farrelly, was also in hot water because of stories in several media outlets in 1998 recounting his habit of flashing his penis as a prank.
He issued a statement on Wednesday apologizing for his behavior.
"True. I was an idiot. I did this decades ago and I thought I was being funny and the truth is I'm embarrassed and it makes me cringe now. I'm deeply sorry."