A teacher has been suspended after he showed the horror film Saw to a class of 11-year-old pupils.
The 'torture porn' film follows a masked killer who forces his victims to perform horrifying violence on themselves and others as part of a sadistic game.
The film was shown to Year Six pupils at Collège Jean-Baptiste Clément in Colombes, a north-western suburb of Paris.
The teacher allegedly told his students: "This will be your first horror film."
As a result, one pupil arrived home looking distinctly uncomfortable.
"He returned from school on Monday evening, visibly in some discomfort, not well," said the father.
"I asked him and he told me his maths teacher had shown them a horror film during class. At the moment the teachers are having staff meetings and parent-teacher meetings, so their classes are cut short and interrupted a bit."
Jean-François Launay of the Federation of Students' Parents Councils, said: "We're in the process of seeing what sort of legal measures we might be able to take in this case."
The plot revolves around a support group for people who survived attacks by a deceased serial killer called Jigsaw, only for a copycat murderer to terrorise the group.