What Did You Do in the War, Daddy? is a 1966 comedy DeLuxe Color film written by William Peter Blatty and directed by Blake Edwards for the Mirisch Company in Panavision. It stars James Coburn and Dick Shawn. Filming was at Lake Sherwood Ranch in Thousand Oaks, northwest of Hollywood. In what had been a cow pasture, designer Fernando Carrere fabricated a storybook Sicilian village which added $800,000 to the production's already elevated $5.5 million budget. Plot During the Allied invasion of Sicily, an outfit of U.S. soldiers is assigned to capture the small town of "Valerno", but upon arrival, they discover that the townsfolk have been expecting them and will willingly turn themselves over to the Americans' rule, provided they are permitted to complete a soccer match and a wine festival. Romance and frivolity ensue, as a reluctant, by-the-book Capt. Cash (Dick Shawn) is persuaded by easy-going Lt. Christian (James Coburn) to go along with the locals' wishes. The Germans mistaking the festival for an attack, after an aerial reconnaissance of the town, a nearby German Panzer unit is ordered come to the Italians' aid, but the Americans accidentally end up conquering all. Cast James Coburn as Lieutenant Jody Christian Dick Shawn as Captain Lionel Cash Sergio Fantoni as Captain Fausto Oppo Giovanna Ralli as Gina Romano Aldo Ray as Sergeant Rizzo Harry Morgan as Major Pott Carroll O'Connor as General Max Bolt Leon Askin as Colonel Kastorp Rico Cattani as Benedetto (as Henry Rico Cattani) Jay Novello as Mayor Giuseppe Romano Ralph Manza as Waiter Vito Scotti as Frederico Johnny Seven as Vittorio Art Lewis as Needleman William Bryant as Minow Kurt Kreuger as German Captain Production The title of the film came to Edwards when he was asked the question by his son Geoffrey. As Edwards was having marital problems at the time, he did not want to leave the United States, so Mirisch Productions agreed to film the movie in Lake Sherwood, California, for $5 million that included the construction of a large Italian village set. In his study of Edwards, Myron Meisel stated that Coburn imitated Blake Edwards' mannerisms throughout the film. The film was the first of what was originally intended to be six Mirisch-Geoffrey Productions between Edwards and the Mirisch Company. Only one other film, The Party, was completed. William Peter Blatty recalled that Edwards and he originally agreed to make the film