I Live in Grosvenor Square is a British comedy-drama romance war film directed and produced by Herbert Wilcox. It was the first of Wilcox's "London films" collaboration with his wife, actress Anna Neagle. Her co-stars were Dean Jagger and Rex Harrison. The plot is set in a context of US-British wartime co-operation, and displays icons of popular music with the purpose of harmonising relationships on both sides of the Atlantic. An edited version was distributed in the United States, with two additional scenes filmed in Hollywood, under the title A Yank in London.

Plot

In the summer of 1943, after he is taken off combat operations for medical reasons, American SSgt John Patterson (Dean Jagger), an Army Air Force gunner, is billeted in the London home of the Duke of Exmoor (Robert Morley) in London's Grosvenor Square. He is befriended by the Duke and British paratrooper Major David Bruce (Rex Harrison). The latter has taken leave from the army to contest a parliamentary by-election in Devonshire.