Goofs

When Sarah and Karl are first kissing in her bedroom, Karl strips to the waist but still has his trousers on. In the next shot, as they fall onto the bed with Sarah sitting astride him, his trousers are missing.

When David arrives at 10 Downing Street, his tie changes eleven times between shots (see trivia).

When Daniel is talking to Sam, a girl with curly hair passes twice in the same direction.

When Sarah and Karl are in Sarah's room, Sarah's alarm clock over her bedside table says that it is five to twelve. A bit later we can see the same alarm clock and it is ten to twelve. (Karl's watch has another time altogether, but this is not necessarily a goof.)

When Mark is talking to Juliet at the door with the cards, the card with pictures of supermodels changes between the first and second shot of it.

The license plates on the President's car as he pulls up are not US government plates but plates from the State of Washington.

The real door to 10 Downing Street does not have a keyhole for a key and has its hinge on the other side (it opens on the right rather than on the left). It also has a big doorbell button setting on the right hand side.

The PM watches Billy Mack on an episode of Parkinson (1971) - it is shown in "proper" 16:9 widescreen (obvious from the amount of space on either side of the chairs). Parkinson was never produced in widescreen, even after the BBC started aggressively producing more shows in 16:9 after the advent of digital TV in the UK.

The major airport in Milwaukee, Wisconsin is named General Mitchell International, not Milwaukee International.

In the subtitle while walking down the stairs in Marseille, Aurelia's name is misspelled once as Auriela.

When Jamie revisits Aurelia, a Marseillaise cab can be seen at the airport, yet everyone in the city seems to understand Portuguese. This can be explained, however, by a large Portuguese community in Marseilles, who live in a common area and would be the ones who understood the language.

After swapping "no" and "yes" in English and Russian, Colin responds to "nein" with "ja." The correct "yes" answer to "no" in German is "doch." But it is natural for Colin not to realize his mistake, since many English speakers forget the distinction.

The school show would have been planned much longer in advance, meaning that the drummer's spot would have been filled long ago. Moreover, trusting such pivotal duties to a newbie on short notice would be quite a risk to take. However, there may have been no drummer in the school and that's why Sam wanted to learn.

In the scene where Jamie comes home and then abruptly leaves, the two little girls say, "I hate Uncle Jamie!" If you watch the girl on the left, she mouths the line just as the girl on the right says it, and then, she says it out loud.

A caption at the start of the movie tells us it's "five weeks until Christmas" before showing us a shot of the fully-lit Christmas tree in Trafalgar Square. The tree lighting ceremony in Trafalgar Square takes place on the first Thursday in December, so wouldn't have been there five weeks before Christmas.

When Karen goes to the bedroom to cry and listens to Both Sides Now. The CD player shows that track 7 is playing. The song Both Sides Now is track 12 on that album.

It may confuse some viewers how the necklace that Harry tries to have gift wrapped winds up in his coat pocket unwrapped when he comes home from the mall. But if one views gift wrap scene carefully, one will notice that Harry doesn't make the purchase at that time. Ergo, Harry could have circled back around before leaving the mall and bought the necklace from a less annoying salesman-without getting the necklace gift wrapped.

When Karen is in her room crying to the Joni Mitchell song "Both Sides Now", the CD player shows that it is track 7. But on the actual "Both Sides Now" CD she received, the song is actually track 12.

During the staff Christmas party, there is a slow song playing but people are dancing at a fast pace.

When Sam is being chased by airport security, at the checkpoint, in some cuts a spring board can be seen for his leap over the guard.

When Daniel takes his place coffin bearer at his wife's funeral we see that his corner of the coffin is quite damaged, there are scratches and the joints are coming apart. It's clear that this is a much-used prop.

In the "Wisconsin" scene where Colin meets the American girls and Carol-Anne walks in, you can see a British-style light switch near the door.

There is a UK Fruit Machine in the "Wisconsin" Bar.

The bar in Milwaukee inexplicably contains a pennant for the Midland RockHounds, a minor-league baseball team in Texas; posters for the Chicago White Sox instead of the Milwaukee Brewers; and several promotional displays for Budweiser, which would be an unpopular choice in Milwaukee, the home of arch-rival Miller beer.

When Colin visits the Wisconsin girls' home, the house is shown from the outside. On the street, a parked car is seen on the side of the street, facing the wrong direction. In America, unlike Britain, a parked car must be facing the direction of traffic, and all traffic drives on the right-hand side of the road. (This is not a traffic rule that is commonly ignored, and in Milwaukee, a vehicle parked facing the wrong direction would be ticketed and towed.)

When the Prime Minister is going to find Natalie at the 'dodgy end of Wandsworth' his limo is viewed crossing Albert Bridge, but is actually driving away from Wandsworth in the direction of Chelsea. The Albert Bridge has three lanes, with two going in the direction of Chelsea, although now the central lane is blocked to reduce weight on the bridge during peak hour (changed 2007).

In Natalie's first scene, both she and her boss specifically tell the PM it's her first day on the job. However, in a scene soon after, she tells the PM she prefers him to the last PM, who she also served in the same capacity, meaning it could not have been her first day on the job earlier.

When Jamie first meets Aurelia and is attempting to speak Portuguese, he says "Molto bueno," which Eleonore informs him is Spanish. In fact, "molto" is Italian.

When Karen is rehearsing the school Christmas play with her children, she says, "It was a starry night in ancient Jerusalem, and the baby Jesus was in his manger." She should have said "Bethlehem".

When the PM is reading Natalie's Christmas card, you can see she wrote "Chistmas" instead of Christmas.