Dust from Underground

Dust from Underground is a Canadian drama film, directed by Arthur Lamothe and released in 1968. Adapted from the novel by André Langevin, the film stars Michelle Rossignol as Madeleine Dubois, a woman who begins to have an extramarital affair when her husband Alain is too busy at work to devote any time and attention to their relationship.
The cast also included Henri Norbert, Nicole Filion, Gilles Pelletier, Nicolas Doclin, Roland Chenail, Victor Désy, Paul Guèvremont, Pierre Dupuis, Rose-Rey Duzil, Réjeanne Desrameaux and Louisette Dussault.
The film was shot in Thetford Mines, Quebec, in 1965, but was not released theatrically until 1968. In addition to screening commercially in Quebec, the film was screened at the 18th [Berlin Film Festival] in 1968 as part of Young Canadian Film, a lineup of films by emerging Canadian filmmakers.