Honoré was inspired to make the film after then-French president Nicolas Sarkozy repeatedly criticised the book as irrelevant in regard to modern life.

In Italian class, a record of Maria Callas singing Lucia plays, which causes Junie to rush out crying, leaving her belongings behind.

Mathias goes to Nemours and explains that it was his letter from another boy named Martin and asked him to say that it belonged to the teacher.

After Otto's suicide, Junie skips school for three weeks, coming only after Nemours tells Mathias that he will be taking sick leave until the end of the semester.

Mathias comes down and tells Nemours that Junie left the previous day, and he is not allowed to say where and to forget about her.