Most of the actors are non-professional, including of course the main character, Julia, played by Julie Ledru. Writer/director Lola Quivoron has been immersed in the urban rodeo world for a while and had realized that all riders were men. She had been looking for some time for her lead, and stumbled onto the Inconnue_du_95 account on Instagram. When she met her, she realized that her life was very much like her character's, so much that some details of her life ended up in the movie.
During an interview for Kombini at the 2022 Cannes Film Festival, writer/director Lola Quivoron stirred a controversy by claiming that most deaths related to the practice of urban rodeos are due to the police who is acting dangerously when trying to make them stop. In reaction, many politicians made their disagreements known.