In the trailer of the film, May Britt appears under the pseudonym of 'Kay Wilkens' and it was her debut.
In an interview, director Mario Monicelli declared that producer Carlo Ponti imposed to credit Steno as co-director due to distributional reasons, as the two were known as a successful couple. Steno was in the exactly same situation with his producer. The two are officially listed as co-directors while they never worked together.