Visible crew/equipment: After Luke cuts Vader's hand, there's a shot of the Emperor walking downstairs. The shadow of the crew is visible on the lower left corner of the image. It can't be the shadow of Luke.
Visible crew/equipment: After Reggie touches the metal poles, he goes flying backwards. As he hit's the floor, you can see a thick white rope attached to his left foot. (01:11:10)
Visible crew/equipment: In "Cat from Hell" Amanda trips over the cat on the staircase, and falls downstairs. The white kneepads that she wears as she rolls down are quite visible in the slow motioned close-up of her. (00:40:30)
Visible crew/equipment: Just before Lara wakes up and finds the clock, she is dreaming that she is outside entering a tent. As she puts out her hand to push the tarpaulin aside to go in, you can see the outline of a string or wire pulling the tarpaulin to one side.
Visible crew/equipment: When Jacquouille is trying to drive the police truck, it's obviously a stunt driver in some shots because he wears a t-shirt.
Visible crew/equipment: As the Baroness is falling into the lake, there is a shot of her about 10m above it. The surface water looks like it is being blown by a helicopter. As soon as she is in the water, the lake is calm again.
Visible crew/equipment: In the scene where the 3 women are being pursued in the mansion by a morphing Jack Nicholson, Susan Sarandon falls over a balcony and is about to hit the marble floor below. Cher and Michelle Pfeiffer begin to laugh and urges Susan to laugh also as doing this causes them to float. Susan begins a nervous laugh and just before she might hit the floor she begins to float above it. Right here you can clearly see the two wires that are holding her up.
Visible crew/equipment: When the two boys are in front of the Grinch's front door, a big monster comes out of the front door, scaring them. The boys then jump off the side of the rocks, and a cable attached to them is perfectly visible.
Suggested correction: I've watched this scene over and over, and there is no cable visible as they jump.
Visible crew/equipment: When Jack and Jackie are waiting in the car for Dr. Becker, Jack is looking in the side mirror. When Jack sees him he opens the door, a camera is visible in the side mirror.
Visible crew/equipment: During the Basketball wish, while Elliot is being interviewed by the sportscaster, you can obviously see cardboard "people" filling the stands in the background. (00:49:45)
Visible crew/equipment: In the scene where Brendan Fraser and the Americans are talking in the bar before the water turns to blood, there is a shot of two of the Americans and Fraser. Off to the left, you can see a hand dip in and out of frame. This is the First AD's hand. The director said he was checking his watch. (01:10:55)
Visible crew/equipment: After Phil drives the truck off the cliff, and it explodes in a burst of flames, there is a shot of Andie MacDowell and Chris Elliot staring in shock at the disaster. The two actors are bathed in an orange glow supposedly coming from the flaming wreckage. But in the lens of the TV camera Elliot is holding, there is a noticeable reflection of the lighting equipment used to create the glow effect on the actors. (01:04:15)
Visible crew/equipment: Thin wires are visible, attached to the crystal bats as they fly off to watch Jen and Kira.
Visible crew/equipment: In the scene after the storm, the ship moves in the sand. Look at its front and you'll be able to see a wire that moves the ship. It's very visible.
Visible crew/equipment: Dr. Marvin decides to try out his new improved magnetic interference unit on a real alien spaceship that shows up outside the Belmont lab. As the truck with the device on it pulls up you can see the reflection of the crew in its door. (00:51:50)
Visible crew/equipment: When Selena visits the school, there's a tube reflected on her window. When her car starts to move we see it's part of an umbrella-like structure used for lighting.
Visible crew/equipment: When the MAC's emerge from the NASA craft in the lab, there a shot through the lab glass of the father MAC, with the reflection of a cameraman holding a camera in the glass. (00:08:55)
Visible crew/equipment: When the gang break into the house at the beginning we see Shaggy playing with an old record player. It suddenly turns on with a bang, and if you look quickly when the camera returns to Shaggy, you can see a hand on the left side of the screen (with what looks like the remote to turn the record player on) quickly pull out of view off screen.
Visible crew/equipment: When Steve rejects Brad Conway's new book and Brad says "what is it exactly?" there is a boom mic visible. (00:09:50)
Visible crew/equipment: When the chairs are flying through the air in the courtroom, if you look closely, you can see the string pulling one of them. (00:34:30)
Suggested correction: This would need more clarification. I couldn't see any string in the mentioned sequences - and for the record, I don't think strings were used, you can easily find interviews with the production team that mention the different trick at work here (they quite literally 'shot' the chairs up in the air).