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)
Factual error: Near the beginning of the film there is a map of Europe with the countries coloured in using their respective flags. Great Britain is coloured with the Union Jack (Union Flag) pattern but so is the Republic of Ireland (Eire). The Republic of Ireland is not part of the United Kingdom (the political state) or Great Britain (the geographical term for the island), only the British Isles - they are a separate country and the Union jack is not their country's flag. Only the north or the Irish landmass (Northern Ireland) and Britain should show the Union Jack. If they are using an "old map" it would have to be very old, before the 1920's.
Continuity mistake: After the graduation, we see Scott writing an e-mail to Meike for the first time in the movie. He writes nearly a line, stops, and the next shot of the computer screen shows that there is about three lines just as he starts typing again. (00:05:55)
Continuity mistake: When Scotty and Cooper leave for London, the airplane taking off has an engine on its tail. The very next shot is of a different airplane that has no engine on its tail. (00:19:10)
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 train station when Jenny meets Cristoph, the trains appear and disappear several times. (00:34:40)
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: 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 graduation party scene, when the band starts singing "Scotty Doesn't Know": Just as the main chorus kicks in, Kristin Kreuk starts dancing on stage. The film cuts from a close up to a wide shot of the stage and Kristin is waving her red jacket around and throws it in the crowd. The shot then goes to close up and mysteriously the jacket is back on her again. It's short and you can only see parts of her shoulders, but they are red. (00:09:10)
Factual error: When the group is seen traveling down the road next to the "walls" of St. Peter's square, the Roman Colosseum can be seen behind them. This is impossible because the Colosseum is far outside of the Vatican City Walls.
Continuity mistake: When Scott tells Cooper he's in love with his pen pal, Scott crosses his arms over his chest. The shot changes and now Scott is leaning forward with his arms resting on the computer desk. (00:15:10)
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)
Factual error: In the "Berlin intro" with all the German images, a plate can be seen with the text "automatische afsluiting" (automatic closure), which is not German but Dutch. (00:43:45)
Continuity mistake: When Scotty and Cooper first arrive in London, Cooper puts his phone up to his ear twice. (00:20:50)
Continuity mistake: When Cooper is at the sex club and the dominatrix Madame Vandersexxx hands him the paper with the safe word on it, he takes it and goes to put it in his shirt pocket. The scene cuts and he is holding it in front of him again, then in a few seconds puts it in his shirt pocket. (00:50:30)
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.
Factual error: When Scotty and Cooper are walking into the airport to get courier jobs to go to Europe, a European road sign can be seen behind them. It is blue with a red X on it.
Continuity mistake: When Scott is doing his robot act on Cooper, he gets really close to Cooper's face. In the next shot he is at a further distance away. (00:30:10)
Continuity mistake: The order of the multi colored phallus sex toys on the gasoline-powered machine in Club Vandersexxx changes between shots.
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)
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.