Continuity mistake: When Daphne jumps out of the pyramid as it is closing, the distance she has jumped changes between shots, and technically she should have been trapped halfway.
Continuity mistake: At the airport before their flight to Spooky Island, Daphne wears a pink minidress and pink boots. This changes to black trousers. In the next scene in the plane, she wears her boots again.
Continuity mistake: In the final scene between Shaggy and Scooby, when they are gorging themselves and eating hot peppers, when the camera switches to the shot of only Scooby, the girl at the table behind him keeps appearing and disappearing.
Continuity mistake: When the monsters all come out in the hotel at Spooky Island, Scooby hides under the table with Fred standing in front of him. The camera angle changes from a close up of the table to a long shot looking at the whole scene. When looking at the long shot, Scooby-Doo is not under the table but when the camera cuts back Scooby-Doo is still there as if he hadn't moved.
Continuity mistake: When the gang are at the edge of the woods staring at the voodoo man, and Daphne says she can handle him and walks towards him. When she takes a step forward you can see a light purple bra under a dark purple dress. A few minutes later the dress is pulled back up and the bra is no longer visible.
Continuity mistake: In the beginning of the scene of the plane, there is no red light on top of the plane. But when Shaggy says "Bad Grandma! Don't eat the kitty!" on the roof is a little red light.
Continuity mistake: In the very beginning of the scene where Daphne motions Scooby and Shaggy over and ends up giving them Scooby snacks, there is a low shot from behind Daphne as she walks into frame. She doesn't have her purse. But the next shot is from the front of her, and motions for Shaggy and Scooby with her purse.
Continuity mistake: At the beginning, as the gang splits up, Velma says, "I'm outta here." In the shot facing Daphne, Fred is walking to his red car in the background and gets close enough so he is turning left towards the driver's side door. Then when Shaggy says, "No, don't go.", in the overhead shot Fred is much farther away from his car.
Continuity mistake: When Fred and Velma unexpectedly meet at the airport watch out for a long haired blonde guy carrying a surfboard who passes Fred twice. He also appears again a few seconds later behind Velma when she comments about how she's been working for NASA (he's wearing the same clothes but without the sunglasses or surfboard and is now reading a magazine). Then we see a frontal shot of Fred and Velma and he's now vanished.
Continuity mistake: When Velma and Fred are walking through the airport talking, you can see there is a girl with yellow pants walking in the opposite direction with another person. However, when you see the crowd around Daphne as she is complaining about how the system is so economy, you see that part of the crowd is the same girl with the yellow pants.
Continuity mistake: Daphne wears three types of boots in the movie: 1) When she is wrestling with the blue costumed guy at the end, when she jumps over the railing to kick him, it goes to a close-up of her foot hitting him and the heel squishes in. (I'm assuming that this was done so as to not hurt the wrestler being hit with her foot. 2) Later, she kicks up and she is wearing pink flats. 3) In the rest of the film, she wears normal pink go-go boots with a solid heel.
Continuity mistake: When Fred and Daphne kiss at the end of the movie, you can see in the close-up that Fred has nothing on his back, but in the very next shot Daphne has her arms around him.
Continuity mistake: At the start of the movie the mystery machine drives through the wall once they have caught the ghost and the front is all dented up. A few scenes later it's perfect again.
Continuity mistake: At the end Rowan Atkinson is released wearing dishevelled clothes, long hair and a beard. When Scrappy is placed on the helicopter, he's standing behind the gang, clean shaven and wearing the clothes he was wearing when the robot controlled version had Scrappy inside.
Suggested correction: Several hours have passed between these two scenes. So he had the chance to shave and put on clean clothes.
Continuity mistake: When they all are driving in the Mystery Machine, Scrappy pees on Daphne, and gets kicked out of the car. When you see him get kicked out, his bag is on the ground. But if you look carefully, you can see that the bag is on the ground before they even open the door to throw Scrappy out.
Continuity mistake: Within the first few scenes, which are apparently on the exact same day, and even in the exact same hour, Daphene's dress changes styles. For example, when she steps off the plane, she is wearing a purple minidress, with a low collar. But, a couple of minutes later, her dress suddenly has a noticeable hem, and a weird decoration thing at the bottom of her slightly lower low collar.
Continuity mistake: During the "Spookapalooza," among the people behind Velma, one is holding a toy trident and the other is holding something else. A few shots later, what they were holding is now in the other person's hands.
Continuity mistake: When Daphne is fighting the demons in the hotel she has a square handbag. After all the drama ends and they awake the next morning on the beach Daphne has a handbag with round handles and a detailed front.
Continuity mistake: Throughout the whole movie, Velma's jumper continually changes from a polo neck to a regular sweatshirt.
Continuity mistake: The density of the monsters change during the movie. The first monster we see is so much lighter than Scooby that it gets catapulted hundreds of yards when Scooby falls from the bent tree. Later, the monsters are so heavy they crash through an awning that Scooby (and Shaggy, Daphne, and Mary Jane) had just bounced off of.
