Mademoiselle Bertoux talks about déjà vu when the two new students introduce themselves. Katharina Thalbach has already played this role in other Hanni and Nanni film adaptations.
Ella Lee debut.
Katharina Thalbach already played Mademoiselle Bertoux in the Hanni and Nanni film adaptations from 2010 to 2013.
The soundtrack with music by Johannes Repka and Alex Komlew was sung by the main actresses, the twins Laila and Rosa Meinecke, among others.
Julia Koschitz and Jessica Schwarz worked on Das perfekte Geheimnis.