Oliver Stone has begun shooting of a new film depicting the events of 9/11.

Producers have met with community and family groups in order to allay fears surrounding the movie, with producer Michael Shamberg insisting it will not be anything like Towering Inferno.

Families who lost people in the attacks have raised concerns about the film, which would have to "be done with some reverence." As well as this, many have voiced fears about the interpretation by Stone, who is known as a controversial director - and who had previously described the attacks as a "revolt" against corporations.

Widower Charles Wolf has asked to see a copy of the script, as - although he appreciates their attempts at sensitivity - he wanted to make sure the representation was "factual" and not "based on a true story".

Producers have said that it will not focus on the politics or meaning of the day, rather on the police officers' experiences and those of their families. To this extent, they say, they hope to make it as authentic as possible. The police officers will be played by Nicolas Cage and Michael Pena.

Other films about the subject are brewing, too: Flight 93, about the hijacked plane that crashed into a field in Pennsylvania, is scheduled to open in April; also planned are an adaptation of the book 102 Minutes and a TV miniseries based on the 9/11 Commissions findings.