There is a great movie in Polish with English subtitles - Kanal- which won an award at Cannes in the late 1950's. It was banned by the Soviet Union. A Czech friend of mine remembers viewing it in a clandestine move theater in Proque during the 1960's.
Its a powerful film, the second film in Andrzej Wajda's War Triology. Black and white fits the subject of the film. Kanal in Polish means a channel, ditch, and such. In thi9s film it refers to the sewers that were used as a communication system by the Polish Home Army. The reason for the films banishment is at the end of the film two of the protaganists are at the very end of the sewers where they deposit into the Vistula and look across the river. All is peaceful there. In fact the Russian army has been sitting there for nearly a month without moving. Stalin wanted the Germans to destroy a postwar enemy.
The Polish 1st Parachute Brigade was supposed to be flown in to help such an uprising, but instead was used in Market Garden. The Allies had already made the decision to give Poland over to Soviet control. Sosabowski, the commander of the Brigade had seen the post war divison of Europe on a map in a room he accidently entered while on a trip to the US at Ft. Leavonworth.
http://www.imdb.com/title/tt0050585/