Continuity mistake: When Jenny, Jamie, Cooper, and Scott are walking down the Amsterdam highway, they switch places from shot to shot. First shot we see is of their feet and you can see Jenny is on the left hand side in front, and Jamie is on the right hand side in back. The shot cuts and now Jamie is in front, left hand side, and Jenny is on the right hand side in front. When the shot changes again they switch shots. (00:55:15)
Continuity mistake: When the four friends are walking to the Vatican, they have their backpacks on. In the next shot they reach the Vatican, but their backpacks are missing. (01:11:35)
Continuity mistake: In the scene where the gang is at the Vatican you see Cooper bite into the ice cream cone and it falls apart. However when you see Cooper a few seconds later and the guard talks to him the ice cream cone is back to its original shape. (01:11:55)
Continuity mistake: In the Vatican confessional, a woman comes to confess and sees Mieke's behind through the window. The camera angles from the inside and outside don't match up to make this possible. (01:20:15)
Continuity mistake: When Mieke and Scott get out of the confessional, Mieke's dress is unzipped. When she walks away in the next shot, it is zipped. (01:20:50)
Continuity mistake: At the end of the movie while Cooper is hugging Jamie at the airport, Jamie switches the bag he is holding from his right hand to his left hand. When the shot changes, the bag is back in his right hand. (01:23:35)
Continuity mistake: When Cooper wears the burning hat, the fire is burning roughly the top third of the hat, yet, in the following shots where he tosses it back and forth with Scott, then throws it in the fireplace, only the tip is burning and everything underneath the small flame is undamaged.
Continuity mistake: In the scene where the gang first meet with the weird Italian guy in the train and he puts his hand on Jamie's leg, look at Jenny. She is sitting right next to Scotty but when Cooper and Jamie run to the opposite side of the coupe she is sitting about a metre away from Scotty.
Continuity mistake: The order of the multi colored phallus sex toys on the gasoline-powered machine in Club Vandersexxx changes between shots.
Continuity mistake: When the gang first arrives at the Vatican (as soon as the "map" shows them travel across the table to Italy), there is a very quick shot of them walking down an alley. Scotty says "there it is" and they walk toward a door with a sign above it (in English, for some reason) that says "Summer at Sea". The shot then changes and they are walking up to the Vatican guards. I guess there was supposed to be a scene where they went to the Summer at Sea office to find "Mike" but it was deleted. It wouldn't make sense, since they knew she was going to the Vatican anyway.
Continuity mistake: At the Vatican, when Scotty first sees Mieke, she has her hair in a ponytail, and her hair is straight. After the sex in the confessional, as she is leaving to catch her boat, her hair is curly.
Continuity mistake: The mail Scott writes when he is drunk is not the one Mieke receives. You can see exactly that Scott writes "freak", but the mail Mieke receives is full of typing errors. One of them spells freak as "fraek".
Continuity mistake: The word "zussamen" which is shown close-up, when Scott reads an e-mail from Mieke after the graduation party, is not written in the e-mail that can be seen a few shots earlier.
Continuity mistake: In the scene where Cooper visits the Amsterdam pleasure house, he is given a safe word. When he is given this word, the woman directly on his left, the one in the pink sparkle shirt, you can see her breasts and not under her shirt. When she goes to strap his ankle to the metal structure in the next shot, her breasts are under her shirt. When she straps his wrist to the same structure two seconds later, her breasts are back out again.
Continuity mistake: When Scotty wakes up on the double-decker bus, his hair and the ribbons on the trophies aren't moving at all. In the next aerial shot they are all flapping in the wind.
Continuity mistake: On the beach, Jennifer starts to untie her bikini top after taking off her shirt. When her brother yells to warn her and the camera pans back to her, her top is still fully tied.
Continuity mistake: When the band is playing at the party and Fiona is dancing on stage, she is wearing a red jacket. At one point, we cut to a shot of her swinging her jacket as if to throw it into the crowd, but you never see her take it off. In the next shot, you can see only her back and she is wearing the jacket again. Then the shot cuts back to her throwing the jacket, but again, you didn't see her take it off.
Continuity mistake: When they all get into the back of the truck when trying to hitchhike to Berlin, Scotty simply pulls the cover closed without securing it. But in the next shot, when the truck is pulling away, the cover is fully secured. The driver never got out of the truck so he couldn't have closed it himself, and the cover, very obviously, has to be secured from the outside.
Continuity mistake: When cooper jumps into the hot tub with candy, the shot from Candy's back shows her arms are open. But when it goes to the next shot of her face, her arms are closed, covering her chest.
Answer: There doesn't appear to be any significant overlap. Scott is hardly an uncommon name and seeing an actress from one film in another isn't exactly uncommon either - neither implies any greater link.
Tailkinker ★