an Entity references as follows:
Bonjour Kathrin (or Bonjour, Kathrin) is a 1956 West German musical film directed by Karl Anton and starring Caterina Valente, Peter Alexander and . It is based on the operetta Die glücklichste Frau der Welt by Max Wallner and Kurt Feltz. The film's sets were designed by the art directors Andrej Andrejew and Helmut Nentwig.