In 1910, during the Great Flood of Paris, shy projectionist Emile Petit and his friend Raoul travel to the Botanical Gardens to make a delivery.Raoul experiments with two potions: "Atomize-a-Tune", which endows its users with operatic voices, and "Super Fertilizer", which makes plants grow to enormous sizes.Lucille, a cabaret singer at the club L'Oiseau Rare, faces pressure from her aunt Carlotta to marry the wealthy Police Commissioner Victor Maynott, a mayoral candidate.[4] Bergeron says he was mainly influenced by Franquin the graphics of the characters, and draws his inspiration from impressionist painters like Alfred Sisley for the color moods and decorations.[5] The appearance and gestures of the monster and the singer Lucille are respectively inspired by those of Matthieu Chedid and Vanessa Paradis, who lend them their voices in the French dubbing.[4] Bergeron even had to put the project on hold for nine months because he struggled to raise funds; he is fortunately advantaged by his past experience at DreamWorks.[6] Among the best reviews is that of the free daily 20 minutes, which sees the film as a "little gem of poetry full of charm and songs" , whose critic praises the "fanciful universe steeped in humor and originality".[7] In Le Figaroscope , Emmanuèle Frois provides a very favorable review, where she appreciates the originality of the story, the pure moment of poetry created by the music of -M- and the successful duo formed by Matthieu Chedid and Vanessa Paradis ; she only regrets the small number of these songs.[9] In the television supplement of the weekly Le Nouvel Observateur (TéléCinéObs), Xavier Leherpeur gives the film two stars out of four: he considers it "brimming with visual discoveries, humor and poetry" , and appreciates its universe and the music, but judges the final sequence "less grandiose than it could (and should) have been".