I think the filter should be IMDB score >= 7 & total vote >= 5k

This will solve all the problems.

I did watch the films filmed in Kandy. But I didn't see the whs, so probably they have to be removed? For 'The Temple of Doom', it's seems only filmed north of the city (see https://movie-locations.com/movies/i/Indiana-Jones-And-The-Temple-Of-Doom.php). 'The Bridge On The River Kwai' is filmed in the city, but not nearby the whs (see https://movie-locations.com/movies/b/Bridge-On-The-River-Kwai.php).

will do!