17 Stupid Mistakes That Somehow Made It Into 2016 Movies
10. J.K. Rowling Missed A History Lesson - Fantastic Beasts & Where To Find Them
When Newt (Eddie Redmayne) meets up with Tina (Katherine Waterston), she mentions that he spent some time in Equatorial Guinea, and he adds that he was out in the field writing a book about those titular beasties.
However, this is an anachronism, as Equatorial Guinea was known as "Spanish Guinea" until 1968, when it gained independence. Remember, of course, that Fantastic Beasts takes place in 1926, so this is unquestionably a mistake.
No doubt some Potter fans will conjure up a magical or alternate universe explanation, but they might just have to accept that even the seemingly infallible J.K. Rowling isn't without her flaws.