'Tis the season...to watch a ton of classic Christmas movies! You might think you know them all backwards and forwards, but I bet there are few things you've never noticed before...
In a scene near the end of the movie, George enters the Building and Loan with a Christmas wreath on his arm. On hearing that he has a phone call from his brother Harry, he tosses the wreath on a table and picks up the phone. In the next second, the wreath is back on his arm.
In the scene where Kevin prepares to ride his toboggan down the stairs, the front door changes position between shots from half open to completely open.
In the shot where we see all the terrorists (except Karl and Theo, who are upstairs) walking into the building from downstairs, they are about to walk through a doorway when the camera cuts out. Watch the terrorist on the left (he's the one who guards the door) - the way he's walking he's going to smack straight into the wall! The shot cuts a fraction of a second before he does, but that's not a remotely normal walk/position - it's clearly just because it makes for a cool looking shot.
Juliet arrives at Mark's flat and brings banoffee pie with her, wanting to see the wedding video. She slips the video into the VCR and places the open pastry box on top of the TV stand. As she takes her jacket off the pastry box is gone, yet in the next shot of the TV the box is right next to the remote, which then changes position in the last shot when the remote disappears. The TV is in the center of the stand in some shots, but to the left of the stand in other shots. The video cassettes, etc., change/alter their position within these shots as well.
When a gremlin attacks the Mum from a Christmas tree, and the tree falls on top of her, you can clearly see a member of the crew with eyeglasses, wearing a red shirt, standing behind the tree pushing it forward on top of her.
Just before Batman takes his mask off at the end, the black makeup around his eyes vanishes while the mask is still on.
In the post office scene, when Cindy is talking to her dad, you can see a post box marked "Grinch" and it has nothing in it. Later we are shown a close-up of the Grinch mailbox and it has spider webs in it.
When Uncle Lewis lights the cigar that sets the Christmas tree on fire, watch closely. It shows side shots of Clark eating his dinner, and you can see the tree in the living room. The camera cuts back to Lewis lighting his cigar, and then back to Clark at the exact same angle as before. The tree is gone.
When Lucy is in the Callaghan's house at Christmas at the very end of the scene it shows her stocking and her name on it is in white letters. However, in the scene where Mary comes in and tells the family that Lucy is pregnant, the camera pans to Jack who is standing right beside Lucy's stocking, only this time her name is in black letters.
When Louie is released from jail his hair is sticking up all wild, then it's flat, then it's all wild again.
After Jack is blown out of the sky and is lying in the graveyard, he has several grey smudges on his face from the explosion. But in the very next shot, a birds-eye view of Jack lying across the angel, the smudges have disappeared.
In the scene where Kris and Susan are in Susan's bedroom talking about Christmas presents, the pillow behind Susan has a flowery border on the right. When Susan climbs out of bed to fetch her picture, the border is on the left. When she gets back in, the border switches back from left to right.
In the scene with Sinbad and Howard in the radio place, Sinbad gets enraged, then throws the package (thought to be a bomb) and Howard hits the deck. The package lands at Howard's head, but in the next shot, it's way over to his left.
Riggs handcuffs himself to the depressed businessman. They jump off the building but they're not handcuffed to each other anymore. They used plastic cuffs which could separate during the stunt in case anything went wrong. They break just as they jump, so they grab each other's hands to stay in contact. After they land the cuffs are attached again.