Peter Debruge Chief Film CriticIn “My Neighbor Adolf,” a Polish Holocaust survivor living in South America suspects that the belligerent German who’s just moved in next door could be none other than der Führer himself. How could that be? Hitler committed suicide in his bunker at the end of the war. Or did he? Director Leon Prudovsky’s middling mind game pits David Hayman and prolific German character actor Udo Kier against one another in what could have been a sly, “Sleuth”-style two-hander.