Continuity mistake: In the scene where the witch gives Mika the dagger to kill herself with, the witch stabs it into the floor. When the witch leaves the dagger is lying on the floor. When Mika goes to grab the dagger it is stuck in the floor again. (01:15:20)
Continuity mistake: When Viper confronts Shingen, she removes her left glove twice.
Revealing mistake: When Anna and Hans are dancing in front of the lighthouse, we don't see the shadow of the railing or the ground they're standing on.
Factual error: In the final fight scene with Malekith, Thor falls through a portal that brings him to Charing Cross station, where the lady on the train tells him he has to ride 3 stops to get to Greenwich. Charing Cross is not on the Jubilee Line and so not directly connected to Greenwich - even then it's a lot more than 3 stops. (01:33:45)
Continuity mistake: When Walter Mitty is on the skateboard riding towards the Icelandic town, there is a shot of him riding along wearing Nike Frees, the camera then cuts to a close up of his shoes and the board, and the shoes in that shot have changed to Vans authentic.
Continuity mistake: After Batman shoots Reverse Flash through the head, Flash rushes over to Batman and catches him before he falls over from his wounds. As Flash is lying him down slowly, there is no blood on Batman's face. It then cuts to a close up as Batman reaches up to pull off his mask and there is suddenly blood on his lips and chin. (01:12:20)
Revealing mistake: Early on, after Clary blasts the demon with a homemade explosion that blows a huge fireball across the kitchen and blasts out the window, there is no sign of anything being burned, not even the curtains. The kitchen is only in a slight shambles and there are small fires burning in isolated areas that never spread or char anything.
Continuity mistake: They trick one witch with a record recording of a boy that is lost. H&G are thrown down by it and the witch picks up a branch and begins zooming off like it is a broom. Hansel is behind her, yet despite the witch traveling faster than he is running, somehow he suddenly gets in front of her and smacks her with his gun. (00:31:10)
Continuity mistake: At the beginning of the movie, Oz gives his new assistant a gift, and leans in for a kiss. Both of them are seen to tilt their heads to their right for the kiss. The scene cuts to a wider shot, just before Frank barges in, and their heads are tilted to the left.
Continuity mistake: In the scene when Mike is at the school door lab. When he swipes the access card the door swings out. But when the campus police try to get in it is blocked from the inside, indicating the door opens inwards.
Suggested correction: If you look carefully, you will see, that those are actually two different doors, which even have hinges on different sides. There's some space between them in the entrance to the lab, it can be seen just before Mike enters.
Continuity mistake: When Percy is tossed though the air by the Cyclops the fleece disappears from Percy's hand, but reappears when he lands on the table. (01:18:25)
Continuity mistake: In the hotel, at Gagamel's room when Clumsy suddenly opens the food lid and bonks the room service guy. The lid falls at the right side of the door, but in the next shot, when Gagamel opens the door, the lids is on the left side. (00:55:55)
Other mistake: The driver for the general at the end of the movie is referred to as captain, but is in the credits as Major Carrie Farris. (02:09:50 - 02:15:35)
Continuity mistake: In the barrel riding scene just after Kili is shot in the leg, Tauriel arrives carrying her bow in her left hand. In the next shot the bow is in her right hand: she nocks, draws, and shoots with her left hand. (00:50:20)
Other mistake: When Odd Thomas and Stormy are riding on his moped through town to stop the massacre they pass a car dealership. All of the letters on the dealership signs are reversed except for a large lighted awning sign that says "Welcome to quality." The normal and reversed signs appear at the same time in the same frame. (00:48:00)
Continuity mistake: Before Iggy gets his horns, he got a shot of whisky in the bar from the blonde girl. The level of whisky changes between shots.
Continuity mistake: As in most movies I've seen where size is a main factor, the animators did not pay much attention to scale. In the scene where the main character leads the leaf people to her father's house, she is jumping and lands on the thinnest pencils I've ever seen. They have the width of the pencil smaller than her foot. However later on, it is shown that a push pin is almost the size of her body.
Visible crew/equipment: After the brief confrontation between Joan and her father, the shot faces towards a pair of framed photographs and the camera casts a very clear shadow on the mantle piece. (00:13:04)
Factual error: Near the end, Zoe and Trey battle to the death, Zoe armed with a tomahawk and a knife, Trey armed with a Husqvarna chainsaw. During the battle, Zoe manages to amputate Trey's right hand, with which he was gripping the chainsaw's safety release and trigger (as his left hand gripped the support handle). Bellowing in pain, Trey continues swinging the chainsaw by its support handle with his left hand. Lo and behold, the chainsaw is somehow, miraculously, still revving in-and-out, which is only possible if the safety release is continuously depressed with the palm of the right hand as the fingers rhythmically flex to squeeze the trigger. Of course, with all major tendons in the wrist severed, an amputated hand cannot grip or flex or squeeze anything.