Revealing mistake: While Miss Hannigan is singing "Little Girls", she sees one of her foster girls as a lamp on a table. As the camera and scene continue down the hall, a foot can be seen in the background as the girl jumps off the table to be replaced with a real lamp.
Revealing mistake: When April O'Neil first tries to take pictures of the foot clan activity at the docks, almost every time they show her phone, the screen is black. In fact, when she finally tries to get the shot of the Vigilante we see a clear as day reflection of herself on the screen.
Revealing mistake: At the end of the film, when Peabody drops off Sherman for school and has just told him that he loves him, there's an animation error occurring in the background in the form of a car going from full speed to instantly being completely frozen. (01:21:00)
Revealing mistake: When the family and Paddington are approaching the fictional "Westbourne oak" tube station the real original sign for "Maida Vale" is in shot.
Revealing mistake: When Schmidt is receiving text messages on his Xperia Z from Captain Dickson that he is going to kill him for dating his daughter, you can hear the phone chiming, but when he shows his cell phone you can see in the notification bar it's on silent. (00:59:00)
Revealing mistake: When we see the funeral, the coffin is lying on wooden planks across the grave as it should be. However, the green sheet is perfectly flat, but not stretched, showing there is no hole under the coffin. (00:45:00)
Revealing mistake: In the Kentucky church-massacre scene, Harry briefly scuffles with a man in a light blue sweater. Harry elbows him in the ribs, sticks a grenade in the man's pocket, spins him around and delivers a crushing blow to his neck, then hurls him head-first into a wall. Throughout this sequence, the man is obviously a live human being. However, a fraction of a second before he impacts the wall, he transforms into a life-size rubber dummy before our eyes, in mid-frame, without any obvious camera cut. This demonstrates the complexity of the scene - it is a digitally-edited collage of action sequences almost seamlessly strung together into what appears to be one long traveling shot.
Revealing mistake: The luminaries lining both sides of the driveway were not lit, although there were a few bags that contained a small circle of dim light that gave the impression of being lit. One of the bags was nonetheless able to catch Boyd's pants leg on fire. (00:11:42)
Revealing mistake: When the newscaster was filming Clinton giving a statement, the timer on the camera stayed at 0:00. The red "Rec" button, which supposedly was on, also looked fake. (00:10:35)
Revealing mistake: As Glenn, Blake and Monica are being surrounded by zombies, as Monica asks "Fucking hell, how many more of these are there?", in the background you can see a zombie sitting astride his victim, flailing away with a hammer or hatchet. It is obvious that he is just swinging his arm back and forth, without connecting with anything. It looks as if he is dusting, not slaying someone. (01:23:50)
Revealing mistake: In the news reel detailing the Kohinoor theft, a few headlines appear, and at least one persists on screen long enough to easily spot the inconsistency between headline and article (filler text presenting a new local magazine from the London district of Lambeth). (00:09:00)
Revealing mistake: About seven minutes in, during the scene where we see Cooper helping the Nerd as a cameraman, you can tell that Cooper has been added to the scene using green-screen effects, as the actor was unavailable to shoot at the location. The lighting on Cooper doesn't quite match the lighting of the scene, and you can see a slight "blur/feathering effect" around him where the greenscreen background was removed.
Revealing mistake: In the scene were Viago is showing the locket that his girlfriend, Katherine, gave him, he puts it on, and since it's silver, it starts to burn his skin. The smoke from his burning flesh is coming from something on the table in front of him, not from inside his shirt.
Revealing mistake: When Felix talks breaking the fourth wall about the mysterious, vicious "Roxy", he shows her twitter page. The latest tweet is dated Mar 10. Since the school at that moment still has to issue the report cards for the first semester, it seems a little too far ahead in time. (00:08:40)