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: After Harriet tells the two Russian sailors off, they walk to the other side of the columns awfully quick considering the short amount of time between the exchange and the next shot of them in the background. They must have run part of the way.
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.
Continuity mistake: During the first scene in the coffee shop, Tony's collar alternates from hanging down to sticking nearly straight out to the side.
Continuity mistake: When Charlie brings the haggis to his parent's house, the sun is still shining when he parks in the driveway. When seen from inside the house as he enters, it's now very dark outside.
Continuity mistake: When Charlie goes onto the roof after Rose gets stuck by the closet, the lights are off in the hotel room because the power is out. But when they show Charlie climbing out of the window, the two windows in the shot have lights on, as though there were lights on in the actual rooms.