Task: Text Categorization
Input (English): Text:  The Adventure of Doctor Kircheisen (German: Das Abenteuer des Dr. Kircheisen) is a 1921 German silent drama film directed by Rudolf Biebrach and stars Lotte Neumann Hermann Thimig and Hans Marr. It was based on the novel Das Mangobaumwunder by Paul Frank and Leo Perutz.
Output (English): 13