Partisan (2015)

Storyline:

On the edge of a crumbling city, 11-year-old Alexander (Jeremy Chabriel) lives in a sequestered commune alongside other children, their mothers, and charismatic leader, Gregori (Vincent Cassel). Gregori teaches the children how to raise livestock, grow vegetables, work as a community - and how to kill. With the birth of a new baby brother weighing on his mind, Alexander begins to question Gregori's overpowering influence on the children and their training to become assassins.