High Quality Content by WIKIPEDIA articles! Conspiracy is a BBC / HBO television film which dramatizes the 1942 Wannsee Conference. The film delves into the psychology of Nazi officials involved in the "Final Solution of the Jewish Question" during World War II. The movie was written by Loring Mandel and starred an ensemble cast of mainly British actors, including Kenneth Branagh as Reinhard Heydrich and Colin Firth as Wilhelm Stuckart, and American Stanley Tucci as Adolf Eichmann.