Rafael Lewandowski's Kret/ The Mole (2011, Poland-France) takes a look at the difficulty of finding out the truth about the past and how it can block future progress
The film portays a father and son team who run a business importing used clothes from France to Poland. Paweł, the son played by Borys Szyc, discovers his father's photo in a tabloid newspaper, with the accusation that he was a secret informer - the 'mole'. All his life, Paweł had known his father as a Solidarity hero... Suddenly he begins to have doubts.
Also see:
Polish Cinema at the 2012 Trieste Film Festival