Deliberate mistake: David's reflection was shown in the dresser mirror when he was sitting at the foot of the bed. When Jo moves around David, the foot of the bed and the corner of the dresser, though not touching, form a 90° angle and the mirror does not span to the edges of the dresser. Therefore, David's reflection could not be in the mirror as shown. (00:03:25 - 00:30:38)
Deliberate mistake: David and Jo, each wearing sunglasses, are riding in the boat. When David says, "L'Afrique", buildings along the upcoming shore are reflected in his sunglasses. The camera shifts to Jo, also facing the shore, and buildings with more lights are reflected in her sunglasses. The camera then shifts to a rear view of David and Jo and it is obvious that what was reflected in their sunglasses was not possible. (00:01:40)