In a statement, film studio Sony and Annapurna Pictures said Mr Boal and director Kathryn Bigelow had been in close contact with the families of victims since releasing the film, which was privately screened for many of them.
The list of celebrities who came into contact with Ali and his large entourage during the week included actor Peter O'Toole, film director John Huston and even, Ronald Reagan who was in Dublin on the last leg of a European tour.