Hangmen Also Die! (1943) review

Immediately after architect of the Holocaust and all-around vile lunatic Reinhard Heydrich (Hans Heinrich von Twardowski) is assassinated by Dr. Franticek Svoboda (Brian Donlevy), the Nazis scramble to find the killer and go berserk on the people of Czechoslovakia, nabbing anyone that might have been involved: they interrogate Mascha (Anna Lee) who helped Svoboda evade the authorities and arrest her historian father Prof. Novotny (Walter Brennan), placing him in a concentration camp ... and then the Resistance starts to suspect beer baron Emil Czaka (Gene Lockhart) is a traitor.  This movie came out so quickly it's not an accurate retelling of what transpired - Jozef Gabčík and Jan Kubiš were the individuals who took Heydrich down as a part of Operation Anthropoid - and it's told in a frustratingly roundabout manner so everything is basically stretched out, which negates a lot of the potential drama (while clearly relishing minions of the Third Reich popping up everywhere to terrorize and kill at random).  Douglas Sirk's Hitler's Madman was released a few months later and offers a similar narrative, but film buffs should take time to watch this anyway, because playwright Bertolt Brecht worked on the story with Lang (it's his only "official" Hollywood credit) and cinematographer James Wong Howe provides several truly menacing shots.  To learn about the reality of what happened, you're going need to do some extracurricular research....