Shot in the United States during September and October 1940, "That Hamilton Woman" defines Britain's struggle against Napoleon in terms of resistance to a dictator who seeks to dominate the world. The film was intended to parallel the current situation in Europe and was intended as propaganda at a time before the attack on Pearl Harbor when the United States was still formally neutral. Korda's brother Vincent designed the sets, creating Sir William Hamilton's palatial home that looked out over the sea of Naples, as well as the interiors of Merton Place: the home Emma and Nelson shared when they returned to England. On a tight budget, Korda completed filming in only five weeks, working from an original screenplay by Walter Reisch and R.C. Sherriff. Originally intended to be entitled "The Enchantress", the film was first released in Britain as "Lady Hamilton".