The movies would also be indexed on IMCDb, for example maybe on the 'Statistics' page: "Movies by filming location". There are also many movies which have the country of origin on IMDb but not the filming location (or only partially listed). Displaying the filming location on each of these movie pages is helpful, it will also avoid the usual "where was it filmed?" question.

However, the most vital feature that the website needs is, in my opinon, a "Show replies to your posts" button, as mentioned before.