Continuity mistake: When Charlie asks for the check in the restaurant, the check is brought and he reaches for it with his left hand. When Tony protests that he'd take care of the check, there is a shot from in front of Charlie and his *right* hand is trying to grab the check. It continues to switch between shots until Harriet grabs the check and pays for it herself.
Continuity mistake: The second time Charlie goes to the butcher shop, the woman being helped when he first walks in takes her package from Harriet and supposedly leaves. Later she shows up in these same butcher shop scenes catching a flying piece of meat. In addition, the guy Charlie helps takes his packages and leaves the shop only to reappear a minute later holding a jar and looking incredulously at Charlie making cow noises. I guess they were a little short on extras.