Les grandes claques -- Film Description:
"December 24, 1983. Julie and her cousins ate too much sugar, Santa Claus is late and Denis, alone in his car outside, is anxious at the idea of setting foot in his ex-in-laws' house."
-- Québec Cinéma

Source:
"Québec Cinéma : Films A-Z." Québec Cinéma. https://quebeccinema.ca/films-a-z. [in French]