First credited role for Czech model/actress Olga Schoberova. Her sister Eva was a model who had so many assignments she couldn't accept them all. So she started sending Olga, who looked a lot like her, to some. This quickly led to a career in modeling for Olga too. A Pilsner beer poster with 20 year old Olga attracted the attention of director Antonín Kachlík, who cast her in this movie. That led to other roles in films.
