It's the same challenge as with any other character, adults or not. You want to take time with the kids. You want to tell them in the audition that they have time to exchange ideas. I'm there. It's not someone else who does the audition, but I don't want to audition a thousand children.
I needed to create some dramatic tension to sustain the interest of the audience. For instance, the boy in the film is not in the play, so this relationship that he had with the former teacher, and his guilt, this is not at all in the play. I thought it would be interesting to look at in the film, and I added stuff like that around the main character. For me, it was not more difficult or less difficult.
If you're writing a screenplay from scratch, it involves a lot of creation. In this play, I had a strong main character and it involved some creation around him. That's what I like about adapting that particular play because I added some maneuvering space as a scriptwriter to invent my own things.
One particular night I was at the theater. I was not scouting for a project, but I was touched by this play by Évelyne de la Chenelière. I was touched by the character. I thought it was a rich character that could be rich enough for a movie.