The War Zone is a 1999 drama film directed by Tim Roth in his directorial debut and starring Ray Winstone, Tilda Swinton, Lara Belmont and Freddie Cunliffe and written by Alexander Stuart. The film is based on his 1989 novel of the same name and takes a blunt look at incest and sexual violence in an English family.
At a public screening of this movie during the 1999 Toronto International Film Festival, one viewer was so upset that, in the midst of a crucial scene, he rose to his feet and shouted that he couldn't take any more, then headed for the exit, intending to pull the fire alarm. Roth, who was in attendance, intercepted him at the door, and it took 20 minutes of intense conversation to calm the man down, becoming confessor for an emotional outpouring that the movie had inspired.
(Summary from Wikipedia)