Factual error: Assane is in front of the violin store with his friend. This is approx. 1995. There is a Peugeot 2008 driving and you can see a Mini clubman twice. (00:19:09)
Factual error: When Claire goes to the violin shop, she is told a price in French Francs, which was normal at the time of the action (1995), but when Assane talks it out with his friend at school, the currency has changed to Euros, which only came into existence in 2002 in everyday lives.