I've been looking into it and Brigade Mondaine is indeed the first in a trilogy of films. I was wrong in my first message: Marrakech Sect is in fact the name of the second in the series, directed by Eddy Matalon in 1979. The third is Vaudou aux Caraibes directed by Philippe Monier in 1980. I really hope a dvd company out there sees fit to release these films some day. A bonus cd of Cerrone's soundtracks for each wouldn't go a miss either.