Continuity mistake: At the end of the movie there is a scene where Ben Miller is in some water, comes back wet in one costume then is dry in a different costume, within the same scene. This is because an intervening scene was shot but not used in the final edit.
Continuity mistake: Rich is dangling a light bulb above his dad's head. When the camera shifts to a close-up of Rich, the light bulb is higher - almost across from his own face - but back to dangling above his dad's head with the next camera shift. This is independent of Rich's dad telling him to "hold the light steady." (00:06:23)
Continuity mistake: In a scene at a night club, Colin Firth's friend has a glass of red wine in his hand and then he has a glass of white wine.
Continuity mistake: Throughout the film, Nicole Kidman's hair changes color. In one particular dinner scene, her hair is everything from light blonde, to dark blonde, to red.
Factual error: When the Germans come to the town a tank rolls through the picture. The first shot shows the tracks, then the whole tank is shown and one can see the tracks again. The turret suggests a Panzer III (which would be accurate for the time). It appears however that the tank is a modified Russian T34 or T55 or something as the road wheels are too big for a Panzer III. (00:13:00)
Other mistake: Elizabeth Banks' husband says it's 4 in the morning but there's daylight coming through the window.
Visible crew/equipment: After Paul leaves the club (where Eddie is) and starts driving away - a crewman is visible in the reflection on the car's back window. (00:35:00 - 00:36:00)
Other mistake: In the flashback to Richard's childhood, when he looks from the door at his dad randomly shagging a party guest, the door appears open wider in the POV than it is in the other shots, where the opening barely fits his head. Besides, with the head in that position, he wouldn't see the door handle as shown. (00:02:00)
Factual error: In the opening scenes where Margaret drives to San Francisco, her car is an early 50s Meteor. Meteors were a Ford Motor Company brand just above Ford (a bit like Mercury) but were sold only in Canada. Meteors often were only rebadged Fords, like this early 50s model. The rest of 50s and 60s car choices in the film seemed perfect.
Continuity mistake: At the Queen of Night's party in her garden, Bristle's outfit and appearance change, and the inkwell disappears. (01:42:05 - 01:43:00)
Continuity mistake: In the "Another Brick in the Wall Part III" section of the show, look at the missing section of the wall on the right hand side. The bottom bricks of that section change from being filled in to being empty depending on the shot. (01:02:40 - 01:04:00)
Other mistake: During the driving scene in the woods with the Bronco, at least two shots are reused twice.
Plot hole: When Mr. Shepherd arrives at the school he learn Joseph's (the student's) name but loses his memory. When they are telling him the nativity story Shepherd says "this Joseph" when referring to the student, but he shouldn't remember it.
Other mistake: Prince Shing and the King have a conversation that lasts not less than 5 minutes of movie (which compresses the time somewhat; groups of people get in and out of the large hall, which wouldn't be instantaneous and happens at least 3 times). The conversation happens while the other members of the royal family are running away through a secret passage. With such a considerable head start and wasting no time (they keep moving even when they put mantles on), they are reached by heavily-armored guards, through the same secret passage, within seconds. (00:12:10 - 00:17:10)
Factual error: The three panzers that ambushed the Hellcats are supposed to be Mk. III's with the 50mm gun, but they only had 5 bogie wheels, instead of 6, and no driver or radio operator's hatches.
Continuity mistake: There is a scene where she accidentally stabs someone - she gets blood all over her from the stabbing and then in the very next scene is wearing the same shirt without blood stains.
Continuity mistake: During the "Perfect Puppy" silly song, Bob places a newspaper he had been reading on the couch beside him when Larry starts singing. When Bob shows Larry the picture of the dalmatian, the newspaper has vanished. When the shot cuts back to Bob, the newspaper has returned. (00:16:55)
Continuity mistake: The protagonist just unveiled to his boss the "nest" ad, to which he suggests some not-so-minor changes. Luca Argentero is holding the drape in two very different ways between shots (first with bunched cloth sticking up top, then simply folded). (00:05:00)
Deliberate mistake: Jim was sitting on a bench along the road and Amy [Brie Larson] walked by (several feet away), apparently not noticing him. (Jim was seated between other people.) Brie got into her car and adjusted the rearview mirror, catching sight of Jim on the bench. A driver would adjust the rearview mirror, if necessary in the first place, to align it with the rear window, not angle it to the right to be able to see the sidewalk. (00:51:34 - 00:51:55)
Factual error: During the Hungnam evacuation scene in December 1950, a U.S. Army Captain is using a radio handset. The model he uses is the H-250, which was introduced in 1987, over 30 years after the Korean War.