[At 15:25] approx, Assane & Juliette meet in Musee d'Orsay, the clock in the background is flipped and clearly shows the time to be approximately 3:40pm. Despite the scene happening in real time, few seconds later [at 15:54], the clock now shows 4:20pm, then in the next cut [at 16:01] clock shows 5:10pm.
When Officer Ganimard collects his coffee and leaves the cafe, Assane startles him on the phone, enough to spill coffee down the front of his shirt. The coffee stain pattern changes at least three times in the 30-second scene.