Warsaw Uprising: Historical footage remastered
21 August 2013 Last updated at 03:02 BST
Historical footage from the 1944 Warsaw Uprising has been enhanced and turned into the movie Warsaw Rising.
The 63-day rebellion was organised by the Polish resistance to liberate the city from Nazi occupation.
The Poles believed they were about to be liberated by the Russians, but the Red Army did not arrive as expected and the uprising was crushed. More than 200,000 people died.
The Warsaw Rising Museum hired cinematographers to add coloration and sound to give a real-life feel to the footage.
Claudia Redmond reports.