Klopfzeichen
| MPAA Rating: | NR |
| Genre: | Documentary, Short |
| Country: | Germany |
| Produced By: | Kristof Kannegiesser, Kay Feuerstake |
| Directed By: | Kristof Kannegiesser |
| Written By: | Kristof Kannegiesser |
| Cast: | Rainer Schottlaender, Edith Schottlaender |
| In Theaters: | Jan 31, 2004 |
| Runtime: | 20 minutes |
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