Once in a Lifetime (2016) on Netflix

A teacher manages to get her toughest class involved in a collective project that could give a whole new meaning to the lives of her students.

The fact based story of a class of schoolchildren, teenagers, in a, from the look of it, mixed ethnic district of Paris, who's teacher decides to enter them in a competition to examine the holocaust from the point of view of its impact on young people. It contains some very emotional scenes and chronicles the change in the opinions and interactions of a typical class of adolescents.

—Barry Mahon