"What Did You Do in the War, Daddy?" is a 1966 comedy DeLuxe Color film directed by Blake Edwards and written by William Peter Blatty. The movie stars James Coburn and Dick Shawn, and is set during World War II. The plot follows a group of American soldiers who are ordered to take over a small town in Sicily.
It is important to note that this question is often asked in a more serious context, as it is a common question asked by children to their fathers who served in wars. However, without further context, it is impossible to determine if this is the intended meaning of the question.
