In the last scene of the movie, when Ludovic goes and meets Marien again, you can see that he wears sneakers. Yet in the very last establishing shot, before the credits appear, Ludovic is barefoot.
At the end of the film, when Ludovic gives the high heels back to Lamya, you can see as he's going away that he wears sneakers while he's supposed to be barefoot.
A hung-up crew member's jacket plus some crew members' feet are clearly visible on the right top corner of the screen when Ludovic turns around and smiles at Lamya at the end of the film.