In the scene when Grégory is at the record store with his mother (2000), we can see records released between 2015 and 2020 such as Aya Nakamura, Kendji Girac, Trois Cafés Gourmands and Eva Queen.
In the scene in the parking lot of Grégory's school, as a child, we see a Renault Zoé and a Toyota Yaris that did not exist at the end of the 80s.