The film stars Benoît Poelvoorde, Charlotte Gainsbourg, Chiara Mastroianni and Catherine Deneuve.

[3] It was selected to compete for the Golden Lion at the 71st Venice International Film Festival.

They agree to meet in Paris at the Jardin des Tuileries without exchanging contact information.

Three Hearts is produced by Edouard Weil and Alice Girard for Rectangle Productions, with co-production support from Pandora Film, Scope Pictures and Arte France Cinéma.

[8] On Metacritic, which assigns a normalized rating, the film has a score of 56 out of 100, based on 19 critics, indicating "mixed or average reviews".