Indiana University-Purdue University Indianapolis (IUPUI) / In 2001, Home Box Office aired Conspiracy, a dramatization of the infamous Wannsee Conference organized by Reinhard Heydrich and Adolf Eichmann. The Conference took place in Berlin on 20 January 1942 and was intended to coordinate the Final Solution by asserting the dominance of Heydrich and the SS over other governmental departments. The surviving Wannsee Protocol stands as one of the most compelling pieces of evidence for the Third Reich’s genocidal intent and emblematic of its shift from mass shootings in the occupied East to industrial-scale murder. Conspiracy, written by Loring Mandel and directed by Frank Pierson, is an unusual historical film because it reenacts the Wannsee Conference in real time, devoid of the usual clichés prevalent throughout Holocaust films. It also engages with historiographical arguments and makes a few of its own. This thesis argues that dramatic film has been relatively ignored by the public history field and uses Conspiracy as a case study for how dramatic film and television can be used to further the goals of public history, especially that of making complex and difficult histories accessible to wide audiences. Grounded in a thorough reading of script drafts, production notes, HBO meeting minutes, and correspondence, this thesis examines Conspiracy from the vantage point of scholarship in public history, film studies, and Holocaust studies. It details the film’s production history, the sources used for the film, the claims it makes, and advocates for dramatic film as a powerful public history outlet. Ultimately, this thesis argues that Conspiracy is exactly the type of historical film that historians should be making themselves.