Revealing mistake: When Strahm's phone says "no signal" there is actually a three bar signal. (00:06:35)
Continuity mistake: After Bill punches the door open at the end of the alley, the old couple get up and escape. There is a wooden barrel and trash in the corner where they were hiding. But moments later when Batman breaks Bill's leg, the corner is seen behind him and the barrel and trash are gone. (00:05:15 - 00:05:55)
Continuity mistake: When Frank Walker and Casey Newton get into Frank's bath to escape the robots, Frank gets in on the left and Casey gets in on the right. They get shot off but when they land in the swamp, Frank is on the right and Casey is on the left.
Continuity mistake: When Jesse brings Reggie home with him, Jesse plays his answering machine as the dog makes himself at home. After Jesse places his gun on the kitchen counter and pours himself a drink, Jessie heads over to the den to listen to Jenn's message again, and he takes a seat in the den. Then, in the last wide shot, the gun is back in Jesse's holster. (00:06:25 - 00:07:10)
Continuity mistake: When Helen sees in the mirror that her hair has been cut, she's holding her head with one hand but in the close-up she's holding her head with both hands. (00:57:52)
Continuity mistake: When David goes into the Dodson Hotel to look for Eddie, the glass door he enters through is completely normal. When he runs out chasing Eddie, he goes out the same entrance and this time the right glass door has a huge hole and is shattered. (00:47:40 - 00:49:35)
Continuity mistake: When Lucifer confronts Thomas, Lucifer forcefully pulls him closer and puts his right hand on his chest, but the close-up shows that his hand is under Thomas' arm. (01:21:20)
Continuity mistake: The cursed necklace is shown emitting its evil fumes on the white paper of the letter, but the letter itself is perfectly 90° with the envelope, or at a different angle. (00:06:20)
Character mistake: At the truck stop, Mark (young Damian) meets with Martin. Martin tells Mark that he had the shedding pills reverse engineered and hands him a piece of paper. The percentages of the 5 ingredients only add up to 90% rather than 100%. (01:29:25)
Continuity mistake: During Buffalo Bob's first appearance, he's holding a rake with both hands. In the next shot, he's holding it with just one hand.
Continuity mistake: At the end, when Sam places the last few mini figurines on the hex riser display, note the house's chimney stack faces to the right, but when Sam picks up the display the chimney faces to the left. There are some other difference between these shots, such as the miniature tree under Dash's car goes from full green foliage to sparse, then back to full. (01:45:40)
Revealing mistake: The overhead shot of Grohman climbing down the mountain features an alpine stuntman wearing gloves, while at no point Mario Adorf was shown wearing any. (00:50:20)
Factual error: The girl in Ed Warren's hospital room is wearing a UConn sweater with the wordmark from their 2013 logo rebrand that had not existed anywhere near 1981. (00:21:30)
Continuity mistake: The roof of the Chessman House changes, going from having a middle roof to no roof in the middle.
Continuity mistake: When Willy asks the decorator on the phone what's the difference between Italian and English, his Samsung Blade switches hands, switching back when he holds it against his chest. (00:33:05)
Continuity mistake: When Lisa and Naoko discuss at the park just after Rose asked Lisa if she could go to the swings, Naoko tucks her hair behind her left ear. In the next shot, her hair is back in front of her ear. (00:51:40)
Visible crew/equipment: In the scene near the start of the movie when Lois Chiles is showing Mia Farrow her bathroom and Mia Farrow is saying "Yes, It's lovely," on the mirror on the right you can see a member of the crew crawling around on his hands and knees. This is visible on the DVD as well as at the cinema. (00:05:50)
Continuity mistake: After Redmond is killed, when the flashback starts, Leonard's back is to the main door of the cabin. When the flashback is over, his back is to the kitchen.
Continuity mistake: In Madrid Bourne calls the emergency line and says he's in 334 Norte street, which triggers cops to show up. When Bourne arrived at the building he looked at the door and it was a 2 digit number which one can faintly see it starts with a 1. (The filming location took place at number 10 Virgen de los Peligros street).
Continuity mistake: When Bobby is begging his mother to let him work for Ted Brautigan, she says yes and fully ties the apron around her waist. However in the next shot, she is shown just putting the apron around her waist and tying it again. (00:21:50)