'Truly unwatchable': writers on their toughest scenes of movie violence

For the return of the gory Saw franchise, Guardian writers remember the hardest scenes of big screen violence they've had to endure A rape-revenge thriller told in reverse, Gaspar Noé's infamous provocation opens with the revenge part first, as two men (Vincent Cassel and Albert Dupontel) embark on a frantic search for the monster who sexually assaulted and mutilated the woman (Monica Bellucci) at the center of their lives. As they descend into a BDSM club called The Rectum, Noé levels his own...