Question: What true story did a World War II film that Anthony Andrews star in that was the only successful assassination of a senior Nazi leader during World War II?

<P0-S0> Operation Daybreak (also known as The Price of Freedom in the US) is a 1975 Second World War film based on the true story of Operation Anthropoid, the assassination of SS General Reinhard Heydrich in Prague. <P0-S1>  Starring Anthony Andrews, Timothy Bottoms and Martin Shaw, it was directed by Lewis Gilbert and shot mostly on location in Prague. <P0-S2>  It is adapted from the book "Seven Men at Daybreak" by Alan Burgess. <SEP> <P1-S0> Kurt Wilhelm Albert Karl Agricola (15 August 1889 – 27 December 1955) was a general in the Wehrmacht of Nazi Germany during World War II who held senior level occupational rear-security commands in the occupied Soviet Union. <P1-S1>  A native of Saxony, Agricola entered army service in 1908 and served during World War I. <P1-S2>  During the interwar era, he held staff assignments and continued to rise through the army's ranks in the Wehrmacht of Nazi Germany. <P1-S3>  His career ended stalled in January 1939, when he was sent into retirement on political grounds because of his marriage to Martha born Hahn, a Jewish woman. <P1-S4>  Reactivated again upon the start of World War II, Agricola received exclusively positions behind the front line. <P1-S5>  As rear area commander of the 2nd Army in the occupied Soviet union during 1941–43, Agricola brought changes in the Wehrmacht's harsh occupation policies and was successful in maintaining control of his area of occupied territory from Soviet partisans. <P1-S6>  Shortly after the war's end, he was arrested by Soviet authorities, convicted of war crimes and remained in captivity for a decade. <P1-S7>  One of the last German prisoners in the Soviet Union, he was released in October 1955 and died shortly thereafter in West Germany. <SEP> <P2-S0> Operation Anthropoid was the code name for the assassination of Schutzstaffel (SS)-"Obergruppenführer" and "General der Polizei" Reinhard Heydrich, head of the "Reichssicherheitshauptamt" (Reich Main Security Office, RSHA), the combined security services of Nazi Germany, and acting "Reichsprotektor" of the Protectorate of Bohemia and Moravia. <P2-S1>  The operation was carried out in Prague on 27 May 1942 after having been prepared by the British Special Operations Executive with the approval of the Czechoslovak government-in-exile. <P2-S2>  Anthropoid was the only successful assassination of a senior Nazi leader during World War II. <P2-S3>  Wounded in the attack, Heydrich died of his injuries on 4 June 1942. <P2-S4>  His death led to a wave of merciless reprisals by German SS troops, including the destruction of villages and the killing of civilians. <SEP> <P3-S0> Fritz Todt (4 September 1891 – 8 February 1942) was a German construction engineer, senior Nazi figure, who rose from "Inspector General for German Roadways" where he oversaw the construction of German Autobahnen ("Reichsautobahnen") to Reich Minister for Armaments and Ammunition where he led the entire war military economy. <P3-S1>  At the beginning of World War II he founded what Hitler named "Organisation Todt" a military engineering company which supplied industry with forced labor and administered all constructions of concentration camps in the late phase of the Third Reich. <P3-S2>  He died in a plane crash in 1942.