Bennett, who sparked controversy when it was alleged his BBC drama Rebel Heart showed Irish Republican sympathies, is working on the project for indie Mentorn. It was ordered jointly by C4 head of documentaries Peter Dale and head of drama Tessa Ross and will air as part of a raft of shows to mark the one-year anniversary of the terrorist attacks.
The film, which is being developed by Mentorn's head of development Alan Hayling, will be directed by Dan Reed and produced by Tom Whitby.
No comments yet