In the restaurant scene at the end, the Quinn character is seen with his hand over his face. Cut to the child standing in front of glass which reflects Quinn looking straight ahead. Cut back to Quinn with his hand over his face.
In the first scene, Sarah lies on her left side and faces Michel who is lying on his right side, facing each other. This means Sarah is on the left side of the bed. When they throw the blankets of, Sarah suddenly lies at the right side of the bed.
Towards the end of the film, Kristin Scott-Thomas is talking to a woman of Italian origins. That lady is talking about 'Florence'. Italians always refer Florence as 'Firenze' , even in other languages.