Apart from showing military training of the American GIs in England, no actual battle or combat scenes are seen in this war movie making it essentially a home front war film.
A campaign to save a real life Second World War pillbox used as a set in this movie was launched in December 2009. The two-story brick building is connected to the former Royal Ordnance Factory (ROF) in the village of Steeton.
In the restaurant with the slot machine, her Coke bottle has a painted 'CocaCola' painted on the bottle. That bottle was introduced in 1957. Before that it was only molded in the glass.
When Helen plays the slot machine in the Officer's Club, in Ireland, there are some "Roosevelt dimes" in her payout. The scene is 1943-44, and the first Roosevelt dime wasn't minted until after the war, in 1946.