Continuity: 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.

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 Southern Ireland (Eire). Southern Ireland is not part Great Britain, 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: 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.

Continuity: In the scene where the gang is at the Vatican and Jenny tells the guard that Cooper is retarded 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.

Continuity: 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.

Continuity: 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.

Continuity: 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: 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.

Continuity: In the train station when Jenny meets Cristoph, the trains appear and disappear several times.

Continuity: When Scotty and Cooper first arrive in London, Cooper puts his phone up to his ear twice.

Continuity: When Cooper is in the hot tub with Candy, there's a blue towel on the chair to left of him. At the very end of the scene, the towel changes to a pinkish striped towel.

Factual error: Absinthe is a very bright pale green, but it does not glow in the dark as seen in the film.

Continuity: The order of the multi colored phallus sex toys on the gasoline-powered machine in Club Vandersexxx changes between shots.

Continuity: 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.

Continuity: 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.

Continuity: When Scott yells to Fiona that the leather jacket isn't his, the shot changes to Scott's father starting to walk over to Scott, and he's carrying a cloth in his hand. In the next shot the cloth has disappeared.

Continuity: 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.

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 incredibly impossible because the Colosseum is far outside of the Vatican City Walls.

Continuity: When we first see Scott's computer, if you look to the left of it you can see the corner of a book very close to the computer (I am assuming it is the dictionary). In the next shot the desk next to the computer is empty and the dictionary is further over to the left.

Other: When Scott is writing Mieke back for the first time, we see him typing on the keyboard, but no letters appear on the screen.