claim: Milk is a biopic.
evidence: Knin Fortress -LRB- Kninska tvrđava -RRB- is a partially ruined fortress located just above Knin , Croatia .. Knin. Knin. Croatia. Croatia. It is one of the biggest and most significant defensive strongholds , and a historical town in the Sibenik-Knin County in the Dalmatian hinterland .. Knin. Knin. Sibenik-Knin County. Sibenik-Knin County. The construction of the fortress started as early as 9th century , while the current state was brought up in 17th and 18th centuries .. It reached its peak during the reign of Demetrius Zvonimir , King of Croatia from 1076 , as it served as a political center of the Croatian Kingdom under him .. Croatia. Croatia. Demetrius Zvonimir. Demetrius Zvonimir of Croatia. King of Croatia. List of rulers of Croatia. Croatian Kingdom. Kingdom of Croatia ( 925–1102 )