Desc: Mama Mia - Nur keine Panik: Directed by Dieter Pröttel. With Uschi Glas, Thomas Gottschalk, Helmut Fischer, Erni Singerl. Bert Leitner and his wife Conny are a happy couple. They have two well-to-do children, Nicole and Sascha, and all could be all right if Bert did not take his job so seriously.