Re: The Little-Known Factoids Thread
Trailers originally played after the feature. That's why they're called trailers.
"Trailer" used to mean any short film - newsreels, comedies, etc. - that came after the feature. Now they come before the feature and are mostly ads for other movies... but they're still called trailers.
When Queen Elizabeth visited the set of Game of Thrones, she would not sit on the Iron Throne.
An obscure law says she cannot sit on another country's throne. It's not clear if the law includes fictional countries, but she decided to play it safe.