How many movies have Gianfranco Longhi and Jean Magniez collaborated on?

They have worked on 2 movies together! Their first movie together was Paris Blue (1977) while their highest rated movie together was Equation to an Unknown (1980). They have not worked together since Equation to an Unknown (1980).

Role
The main figure
Role
The lonely voyeur (as John Ziegman)
Crew
Executive Producer