Continuity mistake: When Ray is eating the sandwich, there is a large bite out of one corner just before he removes the foil. In the shot from behind after the foil is removed, the bite is only from one slice of the bread.
Continuity mistake: Just before he removes it, the foil disappears from Ray's sandwich in one shot, then appears again in the next shot.
Chosen answer: Yes.
Tailkinker ★