It was the 5th most popular film at the British box office in 1960.
Betty E. Box said that Rank did not want her to make the movie saying: "It's religion, it's nuns, it's wartime. Who wants to know?". They eventually allowed her to make it provided she made another installment of the popular "Doctor" series, which she did .
The credit 'Original Material' for the story is fronted by Dale Pitt, as the actual author Adrian Scott was blacklisted as one of the original Hollywood Ten imprisoned for refusing to testify before the House Unamerican Activities Committee.
Received an Award of Merit from the Legion Of Decency.