I'm also curious as to whether there are any other countries with large selling movies? These are all US titles. But, does that mean anything? The studios may be based in the US, but production occurs all over the world. What non-US "big movie" studios are there?
Yeah, the UK makes a lot. James Bond
(Skyfall's one of those $1billion flicks), and
Harry Potter are the Just in the last year there was stuff like
Theory of Everything, Kingsman, 50 Shades of Grey (hey, I didn't say they were all good!), Imitation Game, etc.
There's a formula they use. It takes into account funding, directors, crew, cast, writers, locations, etc. to determine what country of origin a movie is designated as. I don't know how the formula works exactly, but many movies with British casts and crews, or which film at Pinewood, tend to be listed as US/UK.
As a couple of random examples,
Full Metal Jacket or Nolan's
Batman trilogy. Or
Interstellar, and
Inception.
Superman: The Movie (and
Man of Steel). Many, many movies! The
Lord of the Rings movies (NZ is in there, too).
Look at the list of the
biggest worldwide movie franchises. You have Marvel at the top, then a cluster which includes
Harry Potter, Bond, Batman, and
LotR, all of which are UK or co-UK, with
Star Wars in there to break them up a bit.