Patzer

Maurice Chevalier gives a party hat to Felicienne, who puts it on twice.

Steve begins to draw devil horns on a photograph of Mimi. He draws one horn in a close-up, then in the cut to a wider shot, he throws the pencil down. Two horns have been drawn on the photo, even though he only drew one.

While sitting at the restaurant talking with the Frenchman, Steve Sherman (Paul Newman) is holding his cigarillo in his right hand. In the next shot, he is instantly holding it in his left.