The Jönsson Gang & the Black Diamond
Jönssonligan & den svarta diamanten (original)
Sickan, the leader of the criminal Jönsson gang is incarcerated in a mental institution, attended by Dr M.A. Busé, who admire a handbook in crime that Sickan has been writing. Blackmailed by the nefarious banker Wall-Enberg, Dr Busé and Sickan's partners Vanheden and Dynamite-Harry execute Sickan's plan of stealing the valuable Black Diamond of the Romanovs from the National Museum.
Starring Ulf Brunnberg, Björn Gustafson, Peter Haber, Birgitta Andersson, Elias Ringquist, Björn Granath, Pontus Gustafsson, Bernt Lindqvist, Per Grundén, Weiron Holmberg
It's a comedy and crime movie, and has a rating of 5.5 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from United States.