This issue seems to be ralated to plugins so I decided to post it here. For example I wont to fetch data for some local film (let it be Питер FM). So I have folder without date and it's exactly the same as the film title.
Also I use following plugins settings:
Movies, primary: kinopoisk.ru (my plugin)
Movies, secondary: imdb.com
Television: thetvdb.com
Adult: adultdvdempire.com

The first pass of fetcher:
MCM: [F#1] now working on Питер FM
Themoviedb? I didn't select this plugin. Why it is using it?
themoviedb.org: Found #64736, "Piter FM" (2006-04-20)
MCM: [F#1] talking to KinopoiskFetcher...
MCM: [F#1] searching by IMDB ID...
MCM: [F#1] #tt0813541
kinopoisk.ru: FetchByIDs called with localId = "", externalId="tt0813541"
MCM: [F#1] no results by ID, searching by title/year...
MCM: [F#1] Питер Fm ()
[14:54:27.610] DEBUG: ... fetching via text search
kinopoisk.ru: SearchByTitleAndYear called with title = "Питер Fm", year=
kinopoisk.ru: Found #252063, "Питер FM" ()
[14:54:50.515] DEBUG: Auto-returning the best match for "Питер Fm"...
why is it trying to find film with year?
[14:54:50.515] DEBUG: ... no matches for title/year, now trying just title
[14:54:50.521] DEBUG: ... match found: 252063
kinopoisk.ru: FetchByIDs called with localId = "252063", externalId=""
MCM: [F#1] talking to IMDB...
MCM: [F#1] searching by IMDB ID...
MCM: [F#1] #tt0813541
MCM: [F#1] No meta data exists, created a new one!
Why no posters available? It even didn't call GetAllPosters to check whether they exists
MCM: [F#1] No available poster
MCM: Downloading and saving all available backdrops...
The same for backdrops
MCM: [F#1] ... no backdrops were saved (there aren't any available)
MCM: [F#1] IMDB #tt0813541, TMDB #, "Piter FM" (2006)
MCM: Now creating a dvdid metadata for "Piter FM" (2006)...

And as the result IMDB (or themoviedb, I'm not sure) info has been saved. Why? I selected my own plugin as primary.

Ok. The second pass for the same film. I'm still trying to get required data.
MCM: [F#2] now working on Питер FM
themoviedb.org: Found #64736, "Piter FM" (2006-04-20)
MCM: [F#2] talking to FetcherTemplate...
MCM: [F#2] searching by IMDB ID...
MCM: [F#2] #tt0813541
kinopoisk.ru: FetchByIDs called with localId = "", externalId="tt0813541"
MCM: [F#2] no results by ID, searching by title/year...
MCM: [F#2] Piter FM (2006)
[14:56:47.365] DEBUG: ... fetching via text search
Why is it searching by Piter FM? It's not correct.
kinopoisk.ru: SearchByTitleAndYear called with title = "Piter FM", year=2006
kinopoisk.ru: Found #252063, "Питер FM" (2006)
[14:56:55.082] DEBUG: Auto-returning the best match for "Piter FM" (2006)...
[14:56:55.082] DEBUG: ... no matches for title/year, now trying just title
And of course no matches by title. Because this film really doesn't have any global name.
[14:56:55.083] DEBUG: ... no matches just title
MCM: [F#2] talking to tMDB...
MCM: [F#2] searching by tMDB ID...
MCM: [F#2] #64736
MCM: [F#2] Updated existing meta data for this movie.
And now poster was found. Why it hasn't been found on the first pass?
MCM: [F#2] Saved the default movie poster
MCM: Downloading and saving all available backdrops...
MCM: [F#2] ... no backdrops were saved (there aren't any available)
MCM: [F#2] IMDB #tt0813541, TMDB #64736, "Питер FM" (2006)
MCM: Now creating a dvdid metadata for "Питер FM" (2006)...

Media Center Master performs automatic pre-fetching against IMDB and tMDB on all titles to try and find relevant matches, which improves/broadens searches once it gets to your configured fetchers.

You have a lot of questions in this one thread (most are related to the pre-fetching) -- is there one in particular you'd like me to answer? If you need help with multiple issues/questions, please post them separately -- it's a lot easier to respond that way.