Continuity mistake: At the beginning of the movie, Scott runs over to Fiona and kisses her. She says "Congratulations graduate" and is holding a jacket quite high whilst her arm is bent. In the next shot, her arm is straight and the jacket is down by her waist. (00:03:35)
Audio problem: At the graduation Fiona tells Scott that they need to talk. He says, "Yeah, about what?" and the shot changes and you can see he is mouthing "about what" again. (00:03:55)
Continuity mistake: When Fiona is dumping Scott, in the background you can see Scott's father walking over to the stand besides Scott's mother. If you look directly behind them you will see an older couple watching them. In the next shot we see a closeup of Scott's parents but there isn't anyone standing behind them. (00:04:25)
Continuity mistake: 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. (00:04:50)
Continuity mistake: When Fiona hands Scott the Letter Jacket, the shot cuts to a tighter view, and the people behind Scott change from one shot to the next. (00:04:50)
Continuity mistake: 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. (00:05:35)
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)
Other mistake: When Scott is writing Mieke back for the first time, we see him typing on the keyboard, but no letters appear on the screen. (00:06:00)
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)
Other mistake: The emails are written in a very good German (both sides). But the word Scotty is looking up neither appears in Mieke's mail nor is written correctly. It should be "zusammen", not "zussamen". Also it's translated incorrectly, the closest meaning is "together" (for more look it up yourself). (00:13:00)
Continuity mistake: In the scene after the party, Burt is on Scotty's computer typing. However, there's already an entire paragraph there and no more words are coming up. Also, a word in the beginning of the paragraph is highlighted for no reason. In the next shot, this highlighted word helps prove a point for Burt. (00:14:00)
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 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: When Scotty and Cooper first arrive in London, Cooper puts his phone up to his ear twice. (00:20:50)
Continuity mistake: When Scott asks the soccer hooligan where they are going (when they're on the bus), you can see that right at this moment the bus is about to pass underneath a bridge. The shot changes, but there isn't any visible indication that they passed underneath the bridge. (00:26:05)
Continuity mistake: After Jaime introduces his Leica M7, he switches from swatting Scotty with his left hand to his right hand and back. (00:28:35)
Continuity mistake: When Scott and Cooper meet up with Jamie and Jenny in Paris, at the end of their conversation Jamie says "Let's go to the Louvre." When he says this his book is down by his side. In the next shot he has the book open in front of him. The shot changes again, and again the book is down by his side. (00:29:05)
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: When the group is at the dinner table in Paris, Jenny says "We can go to Denmark," and Cooper has his wine glass in his hand. In the next shot we see Cooper, and his arm is down with no wine glass. In the next shot, the glass is back in his hand again. (00:33:20)
Continuity mistake: In the train station when Jenny meets Cristoph, the trains appear and disappear several times. (00:34:40)
Chosen answer: It was made for the movie but you can now find it all over the 'net. Try a Google search.