Milena Steinmasslová and Vera Spinarová auditioned the part of Saxana, eventually played by Petra Cernocká.
Milos Kopecký was originally considered for the part of four-armed headmaster, eventually played by Josef Bláha.
Actress Helena Ruzicková, who played the psychiatric patient awaiting Christopher Columbus, also played a psychiatric patient (an insane serial killer) in Václav Vorlícek's previous comedy You Are a Widow, Sir! (1971).
Most of the young actresses who auditioned unsuccessfully for the part of Saxana appeared in small roles as Saxana's classmates at the beginning of the film.
In 2019, the film was adapted into a stage musical 'Saxana' by 'Studio Dva' theater in Prague, directed by Simon Caban. Jan Kraus, who played Miky Rousek in the film, plays the four-armed headmaster of the witchcraft school in it, and the original Saxana Petra Cernocká makes a surprise appearance at the end to sing the famous song from the film with the rest of the cast.