Red Nose

Red Nose is a 2003 Canadian romantic comedy film, directed by Érik Canuel. Starring Patrick Huard as Félix Legendre, an acerbic literary critic, and Michèle-Barbara Pelletier as Céline Bourgeois, a writer whose most recent work he harshly trashed, the film traces their journey from hate at first sight to falling in love when they are unexpectedly assigned as each other's partners while volunteering for Quebec's annual Opération Nez rouge Christmas driving service.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.