Two acting powerhouses square off under dramatic circumstances in “My Neighbor Adolf,” directed and co-written by Leon Prudovsky. The German actor Udo Kier, whose performances can be both frighteningly intense and wryly funny, is paired with David Hayman, the stalwart Scottish character actor who in turn can morph from steely to vulnerable in the blink of an eye. Hayman plays Polsky, a solitary man and a Holocaust survivor living in Colombia in 1960. A chirpy real-estate agent, Frau Kaltenbrunner (Olivia Silhavy), brings the unwelcome news that not only will Polsky have a next-door neighbor, but that recent surveying has found...