How to display Japanese titles only

[blindcat87]

At the top of the movies page, there are links to filter search and browse results down to a single country. These are the ones available:

United States
United Kingdom
Canada
Germany
France
South Korea

Why no link for Japan? I would very much like to be able to browse or search for Japanese titles without having to sift through titles from other countries. I can do that for all of the above countries, but haven't been able to find any other way to narrow down results other than the links at the top of the page. Is there another way to select a particular country other than those listed above?

Thanks,

Chris