Secrets of War (2015)

Tuur and Lambert are best friends. But the war is closing in and is about to change their lives forever. Tuurs dad joined the resistance and even his big brother seems so be part of it. Lamberts family on the other hand choose to obey the Germans. Then a new girls from the city shows up, befriending the boys but telling her secret to only one of them. A choice that separates the boys and ultimately gets her in trouble.