Other mistake: Right after the scene where they are chased by a bunch of naked guys at the nude beach, they're sitting in a train and we can see Scott leafing through his past e-mail correspondence with 'Mike'. If you look closely, you'll notice that the third page is the same as the first page.
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)
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)
Other mistake: When Scotty and his friends sit in the train driving from Crans Sur Mer to Amsterdam, Scotty reads his e-mails from Mieke again. However, most of the e-mails make no sense or are not written as if from one pen pal to another (e.g. in one e-mail, a 'Sandra' is asked how her job is going). (00:43:30)
Chosen answer: It was made for the movie but you can now find it all over the 'net. Try a Google search.