Gregory Peck found the stunts particularly difficult because of an old leg injury due to horseback riding. So during the cornstalk scene Peck had to keep telling Sophia Loren to slow down because it looked as if she were rescuing him and not the other way around.
Carl Duering is dubbed.
A sequence involving eye drops being dropped into an eye was donated by Stanley Donen to the John Hopkins Medical School 'Ophthalmic Division' for research purposes.
last feature of John Merivale.
Last picture that Gregory Peck made for three years while he concentrated on his humanitarian efforts that included the American Cancer Society.
None of the actors featured in the movie are Arabic.
The part of David Pollock was originally written for Cary Grant. When Gregory Peck had trouble getting the humor right in a line, he'd smile and tell director Stanley Donen "Remember, I'm no Cary Grant."