He studied music at the Conservatoire de musique du Québec à Montréal.
Other films for which he has composed scores have included Deliver Us from Evil (Délivrez-nous du mal), Hold on to Daddy's Ears (Tiens-toi bien après les oreilles à papa), The Decline of the American Empire, Jesus of Montreal, The Tin Flute and The Passion of Augustine.
[5] Dompierre composed 24 Preludes, in remembrance of Bob Alain, a jazz pianist who influenced his early career.
[6] In 2018 the Sutton Museum mounted an exhibition of Dompierre's work, including a presentation of his composition, "Petit Concerto de Saint-Irénée".
[7] In 2019 Dompierre published a biography of his longtime friend and collaborator Monique Leyrac.