This is a film that could have been an important film if it had not stooped to the use of repeated use of the 'f' word and other foul language. The people depicted in this film would not ordinarily use such language. I am acquainted with many Holocaust survivors and I have never heard such language pass their lips.
Although the Holocaust was used as the starting point of the film, and as a background for the most important character, there was no attempt to explain how that experience molded the character to make him what he is in the film.
Also it was never shown how the children of the Holocaust survivor were affected by their father's experience as it was with most children of Holocaust survivors.
It should have been a strong family drama, and it was to a point. But the foul language ruined it.