Hello. I have 2 questions. First of all is why I’m add new film and name of this by default on English? In settings I’m used Russian. And the second question is how I can remove all agents and stay only the movie database?
As for #1:
make sure you set the language for that library to Russian (Edit... > General)
As for #2:
Within the advanced library settings you can pick which agent to use.
If you want Plex to use The Movie Database for this library, select The Movie Database from the dropdown:
To ensure Plex is using only information from The Movie Database with this agent, you can also adjust the settings:
Go to Settings > [server] > Agents
Select Movies > The Movie Database
Uncheck all checkboxes except for The Movie Database