Bill Bergson Lives Dangerously (original Swedish name: Mästerdetektiven Blomkvist lever farligt) is a 1957 Swedish film about Kalle Blomkvist, directed by Olle Hellbom.
It is based on the novel with the same name, written by Astrid Lindgren.
It was recorded in Trosa, Södermanland.
There are differences between the book and this film:
This article related to a Swedish film of the 1950s is a stub.