You can find the answer here:
I hope they do an accurate and respectful movie. Not enough people know of the Germans who reisited Hitler. I cannot imagine what it must have been like to be in active resistance to the dictator while living in a country that is controlled by the Gestapo sadists. How do you organize a resistance when so many people are spies for the dictatorship? That took courage. They had courage but, tragically, they did not have luck.