Bad Seeds is Kheiron's second feature film after Nous trois ou rien (2015). For this new film, the director wanted to talk about a theme that particularly affects him: education.
To find the six teenagers, Kheiron appealed to Adelaïde Mauvernay, casting director. His first instruction was that he did not want actors, but teens from the "real life". Suddenly, they first considered a wild cast that proved to be a process too long, complicated to implement and inefficient because the roles of the little ones are very technical for non-comedians.
In his first feature film, all that was told was true. In Bad Seeds, Kheiron could have said "inspired by a true story," but he let his imagination run wild, so he figured he did not deserve that stamp.
The scam scene in the purse stolen between Monique and Wael is the scene that Kheiron wrote first. The director wanted first to design a device that holds the road, before imagining the dialogues. When he finished this sequence, the relationship between the two characters was clear to him: this old lady breaks the law to protect this young man, while being aware that she does not really help him.
Kheiron has always considered interpreting the main role of Bad Seeds. For two or three months after his first feature film, Nous trois ou rien, several roles of migrants were proposed to him, then supporting roles and then nothing at all.