Need help finding the name of this movie- about WWII- a "giant" polish jew?

I saw a movie a few years ago on either ifc or sundance. It was about a polish jew prophet in WWII and based on a true story. THe polish Jew was a "giant" and was in some traveling show for the nazis- for his strangth and how tall he was. It was a very well done movie- at the end the giant ends up dying from infection from wounds from a nail scratch or something like that. I would really love to see this movie again- any help would be great. I think there was 1 really popular actor in it- he was the one who ran the show with the giant. The Giant jew was polish and he was a prophet and predicted what happened to his people in dreams. Thank you again