Character mistake: The opening shot of the movie pans across a fence supposed to enclose the hunting reservoir of the royal family of the fictitious kingdom of Vespania. Judging by the sign on the fence, the official language of the country must be EngRish; the sign says "Land Demesne We knownothing [sic] about FIRE!", citing also as source for these cryptic messages the "internal secuLity act of 1950." (00:00:01)
Character mistake: When Lupin brings the princess back to the palace by car after meeting Conan at the cherry tree, he drives by a street sign that says "St. SANTIHUU34" and one that says "idajfojafas." Even if Vespania is a fictional country, it does not seem to have a fictional language, and we can say with sufficient certainty that semicolons do not belong in city or street names. (01:15:05)