Yes, it is not completely modular 100% but it can be done by stalker coders easily. Here it is:
tmdb.class.php offers the TMDB module. get.php.diff has the patch that is needed in server/administrator/get.php to enable modular movie parser. You need to have in your custom.ini, inside vclub block, the option: movie_data_parser_class = TMDB (or Kinopoisk if you want to use the Kinopoisk parser class). You also need to set your tmdb_api_key in the same section, like: tmdb_api_key = 'abcdef1234556' . You can get your tmdb_api_key by registering to themoviedb.org
patches in get_img.php and add_video.php are not yet modular. Original versions have hardcoded the url for kinopoisk. New versions have hardcoded the urls for tmdb. It needs to be done modular.
server/tools/update_kinopoisk_rating.php also needs updating to use tmdb, so better disable automatic rating updates.
I hope that with little help of stalker developers, it can be integrated in future releases.