The 59-year-old writer, who recently won a Golden Globe for the film, found himself in a controversy after his old tweets resurfaced in which he claimed to have witnessed thousands of Muslims in New Jersey celebrate the September 11 attacks on the World Trade Center.
Soon after the tweet resurfaced, Vallelonga's entire Twitter profile was deleted.
In a statement, Vallelonga apologised for the comments, especially to actor Mahershala Ali, who plays one of the leads in the Peter Farrelly-directed film.
"I want to apologise. 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.
The film is about a black concert pianist Don Shirley and his Italian-American driver Tony Vallelonga, who served as Shirley's chauffeur on a series of concert tours in the largely segregated South.
"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," Vallelonga said.
(This story has not been edited by Devdiscourse staff and is auto-generated from a syndicated feed.)