Muß denken

- Originální název: Muß denken
- Žánr: Dokumentární
- Hrají: Christian Polster, Christa Polster, Niki List, Robert Polster , další...
"Need to think" is the sequel to the 1983 film documentary "Mama funny ...?". The protagonist is once again Christian, a young man with Down's Syndrome who is by now twenty-four years old.