Underground (French: Souterrain) is a 2020 Canadian drama film, written and directed by Sophie Dupuis. Produced by the Montreal based company Bravo Charlie, the film stars Joakim Robillard as Maxime, a troubled miner in Val-d’Or, Quebec, who must attempt to rescue his coworkers when an explosion happens inside the mine.

The cast also includes Théodore Pellerin as Julien, his friend and former coworker who has suffered from aphasia since being injured in a car accident for which Maxime was responsible, as well as James Hyndman, Guillaume Cyr, Catherine Trudeau, Mickaël Gouin, Chantal Fontaine, Bruno Marcil and Jean L'Italien.

The film entered production in 2019, and was scheduled to premiere at the Festival du nouveau cinéma on October 7, 2020. The event was cancelled due to severe weather. It subsequently had its world premiere screening at the 2020 Whistler Film Festival, where Dupuis won the Borsos Competition award for Best Director of a Canadian Film.

The film was set to be theatrically released in the province of Quebec on April 30, 2021, but due to continued restrictions related to the COVID-19 pandemic in Canada its release was delayed, and the film finally opened commercially on June 4.

Underground was the opening film of the Rendez-vous Québec Cinéma film festival on April 28, 2021.