3 movies, same title, same release year

In a situation such as this, you should probably include the IMDB or TMDB ID within curly braces at the end of each movie’s folder/file name.

/Movies
   /Batman Begins (2005) {imdb-tt0372784}
      Batman Begins (2005) {imdb-tt0372784}.mp4
/Movies
   /Batman Begins (2005) {tmdb-272}
      Batman Begins (2005) {tmdb-272}.mp4

The examples above are from this article:
https://support.plex.tv/articles/naming-and-organizing-your-movie-media-files/

This should help Plex uniquely identify each movie.

Since these were likely identified as duplicates of the same movie in your library at some point, you may need to use the Plex Dance to untangle them after renaming.

/Movies
    /Journey to the Center of the Earth (2008) {imdb-tt0373051}
        /Journey to the Center of the Earth (2008) {imdb-tt0373051}.mp4