 The dissimilarity in heights between the Loren and Ladd led to complications in filming.Some of their scenes together required him to stand on a box, while another forced a trench to be dug for Loren when the pair walked along the beach.Sophia Loren sings "What is this thing they call love" ("Tι΄ναι αυτό που το λένε αγάπη") with an uncredited .