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.

When Patterson realizes that Pat and David have long expected to marry, he contrives to obtain medical clearance to go back to combat duty.

Notable supporting players included Charles Victor, Ronald Shiner, Percy Walsh, Brenda Bruce, Shelagh Fraser, John Slater, Alvar Lidell, David Horne, Robert Farnon and Carroll Gibbons.

[8] According to Kinematograph Weekly the "biggest winners" at the box office in 1945 Britain were The Seventh Veil, with "runners up" being (in release order), Madonna of the Seven Moons, Old Acquaintance, Frenchman's Creek, Mrs. Parkington, Arsenic and Old Lace, Meet Me in St Louis, A Song to Remember, Since You Went Away, Here Come the Waves, Tonight and Every Night, Hollywood Canteen, They Were Sisters, The Princess and the Pirate, The Affairs of Susan, National Velvet, Mr. Skeffington, I Live in Grosvenor Square, Nob Hill, Perfect Strangers, The Valley of Decision, Conflict and Duffy's Tavern.

British "runners up" were They Were Sisters, I Live in Grosvenor Square, Perfect Strangers, Madonna of the Seven Moons, Waterloo Road, Blithe Spirit, The Way to the Stars, I'll Be Your Sweetheart, Dead of Night, Waltz Time and Henry V.[9] Critic Bosley Crowther wrote in The New York Times, "There is much that is admirable about A Yank in London, and the glimpses of Irene Manning singing for the boys at the Rainbow Corner in Piccadilly will stir memories.

But the picture, like the script, is diffuse, and Mr. Wilcox in his direction permits scenes to dissolve in a rambling, confusing style";[10] while more recently TV Guide called it "An entertaining but overlong romance.