Backdoor (2000)

Athens 1966. Dimitris, 13, unexpectedly loses his father. Seeing his pampered mother collapse, the boy gets carried away and decides to skip childhood in order to stand by her. When he feels ready, he has to claim his mother back from an up-and-coming star of the military regime. A brutal coming-of-age story, where Dimitris reacts in vengeance, changing thus the course of Greek history...