How Watson learned the trick
- Blwyddyn: 1970
- Gwlad: Germany
- Genre: Mystery, Comedy, History
- Stiwdio: Universität Bonn
- Allweddair: amateur detective, detective story, based on short story, holmes/watson, detective with humor, detective comedy, sherlock holmes, bantering relationship
- Cyfarwyddwr: Stefanie Hosenfeld
- Cast: Jan Krolikowski, Dorian Lummel
