Your definition of "high concept" hardly applies here and is can be questioned what films do or don't follow the general meaning: a movie's premise or storyline that is easily reduced to a simple and appealing one liner. "Ghostbusters" was an example but also had the effect of putting comic horror flicks on the map. It's a term within the industry and not especially directed at film audiences but film producers who can be sold making a film from a short description.
Here are some one word film titles that fit the definition of high concept:
Godfather
Splash
Gladiator
Braveheart
Jaws
Twister
Armageddon
Speed
Alien
Titanic
Godzilla
All of those were sold and had financing before any final script was written and, granted, some were sold on the reputation of the director as well.
Still didn't get a list of Asian films that you like. You seem to be generally against Hollywood products so I felt you must have a very long list of foreign films which are almost all not high concept movies.
It took over nine hours of movie to tell a story of a small portion of the saga of Middle Earth. Don't think they'll be filming any of the "Simarillion."
If this doesn't fit into any genre you can think of, how about historic action adventure drama?
Are you sure you saw this movie straight?