Continuity: When William takes Anna back to his flat, after the orange juice incident. His shirt is stained, she comes into the flat and changes. Then she leaves. When she returns to get her books, his shirt is still stained but after she kisses him the stain is gone. An impressive kiss...

Continuity: Every time they show the outside of the bookstore, on the left you see the same adult drying a child's tears.

Revealing: In the scene where they are all having a farewell dinner at Tony's restaurant. At the end of the meal they are all scattered around the restaurant, the camera is on Bella and Honey and in the background, outside the restaurant, 4 extras walk past, 3 at the front and one behind. The next shot is at the window where Max and William are sat, again the 4 extras walk past in exactly the same order and positions. They are the same people because one of them has a pink top on and you see that twice.

Continuity: When Hugh Grant is interviewing Julia Roberts in the hotel suite, the doorknob behind him is actually a lever surrounded by tan-coloured trim. A second later, the lever becomes a squared-off knob and the trim is now dark brown.

Continuity: At home when William is sitting at his desk opening up to Spike about the female problem, the items on his desk change their positions between the wide shots and the close-ups.

Continuity: At the bookstore, in the wide shots the surveillance monitor is sitting in the center of four large books, yet in the close-up of the monitor, showing Rufus, the shoplifter, there is another book lying on the larger books, to the left of the monitor.

Continuity: When Anna visits Will's place for the first time there is a plant and an open window when you look from the entrance into the apartment. Later, after she has left, there is no plant and a shutter pulled down.

Continuity: In one scene in the bookstore, there are three copies of a guide to Germany on the table next to Hugh Grant. In one clip, there are three spines, in the next two of the books have been turned round.

Continuity: In the scene where William visits Anna on the set of her period film and they have a discussion near the trailers, the same man pushing a trolley is in not one but three cuts back to Anna.

Continuity: When Anna comes down the stairs at night to join Will she is peeping around a partition wall. Next we see them kissing, and the wall is gone.

Continuity: When Anna muses over the size of Will's feet he is reading the newspaper. Check the picture on the back of the paper - it changes although there is no sign that he turns a page.

Continuity: When Will leaves his bookstore to get a sandwich and some orange juice there is a poster stand in front that hadn't been there when he arrived.

Continuity: When Will detects Rufus the thief on the monitor only the picture in close-up shows him in action. All other shots show him at a different place on the left side of the screen.

Continuity: In the second scene at Will's bookstore a bus with Anna's face on it is passing the bookstore twice in successive shots.

Continuity: When Will leaves after the interview his formerly brown jacket is grey and his hair is differently combed.

Continuity: Despite the passage of time, every time we see the back of the door in the book shop the same post is visible in the basket.

Continuity: At the birthday party of Will's sister Bernie's tie knot moves down from one shot to the next.

Continuity: When you see the entrance area of Will's bookstore from inside for the second time the shelf is shifted to the left, and the things things on it are rearranged, e.g. the latitude scale of the left globe is turned.

Continuity: On the surveillance monitor there are lying two books, the upper one with a black binding. In a close-up of the monitor you see only a part of the book with the black binding, and the other book is gone.

Plot hole: At one point, driving down Haymarket, they turn left into a side street to take a shortcut round Trafalgar Square. The next scene shows the Rhys Ifans character stopping the traffic next to Admiralty Arch to let the car come out of a side street. However, to get to the street out of which they are shown as emerging, the car would have had to drive all the way round Trafalgar Square and turn left off Cockspur Street, almost back where they started.  The street they turned into off Haymarket comes out on Pall Mall East and the only way to go is along the north side of Trafalgar Square. So unless there's a wormhole between the two streets, the shortcut was anything but.