Le fou du labo IV

Le fou du labo IV is a French comedy film directed by Jacques Besnard and released in 1967. Running approximately 90 minutes, the production brings together a number of well-known French performers of the era, including Bernard Blier, Jean Lefebvre, Michel Serrault, Robert Dalban and Laure Paillette, alongside supporting players such as Henri Virlogeux, Jean Ozenne, Jean Franval, Guy Delorme and Alain Janey.

Standing as an example of the 1960s French comedy tradition, the film was delivered under Besnard's direction with an extensive ensemble of character actors. Its sizeable cast reflects the typical qualities of French comedy productions of the period.