Fake Nationality: The Canadian tourist in the restaurant is played by a Slovenian-American. The fat American tourist is played by a Welshman. Also, Jimmy was played by a Canadian. And Chloë was played by a French woman.
Averted with Ken and Ray. They were originally written as Brits, but the script altered when two Irishmen signed on to the parts.
Hey, It's That Guy!: The three leads are fairly well-known on their own accord, but it can be disorienting to watch Harry Potter and the Goblet of Fire and then watch this film, given the presence of Gleeson, Fiennes, and Fleur Delacour's actress Clémence Poésy. Also, Danko's vacation was a bit stressful and that's why he's so tightly wound.
A Deleted Scene has a pre-Eleventh DoctorMatt Smith, as a younger Harry, kill a policeman named Potter. Or, to phrase it differently, "Harry, as The Doctor, kills Potter, years before he was Voldemort."