Knall and Fall as Detectives

{{Short description|1953 film}}

{{Use dmy dates|date=September 2021}}

{{Infobox film

|name = Knall and Fall as Detectives

|image = Knall and Fall as Detectives.jpg

|caption = German film poster

|director = Hans Heinrich

|writer = {{ubl|Philipp Lothar Mayring|Hannes Peter Stolp (novel)}}

|starring = {{ubl|Hans Richter|Rudolf Carl|Ingrid Lutz}}

|music = Bert Grund
Hans Lang

|cinematography = Bruno Stephan

|editing = Ira Oberberg

|studio = {{ubl|Arena-Film|Wiener Mundus-Film}}

|distributor = Herzog-Filmverleih

|released = {{Film date|1953|5|29|df=yes}}

|runtime = 78 minutes

|country = Austria
West Germany

|language = German

}}

Knall and Fall as Detectives ({{langx|de|Knall und Fall als Detektive}}) is a 1953 Austrian-West German comedy film directed by Hans Heinrich and starring Hans Richter, Rudolf Carl, and Ingrid Lutz. It was made as a sequel to the 1952 film Knall and Fall as Imposters.{{cite book|first=Robert|last=von Dassanowsky|authorlink=Robert von Dassanowsky|title=Austrian Cinema: A History|publisher=McFarland|year=2005|location=Jefferson, NC|page=151|isbn=978-1-4766-2147-0}} It was shot at the Spandau Studios in Berlin. The film's sets were designed by the art director Rolf Zehetbauer.