Recently I bought an interesting DVD box on Belgian beer called "Tournée Général". You should try it both.  But I get frustrated by this local documentary series, usually very little information is shown. I only found the names of the 2 producers and the 2 hosts of this 10-parts series.  British/US/German documentary productions show more pride in showing the names of crew and cast.
Time to try something, I contacted the local production company SPUTNIK TV and guess what I got a reply of someone of the crew giving some of the names of the crew members. Curious, this can only be expected when you contact a small local company.
Such external sources aren't given in the rules as a credible source, but seems to be a very usefull source.  I have incluced the text of the e-mail reply in my offered contribution. We'll see what happens.  Something I wanted to share. I don't know if others have done this before.

Greetings
Marnix

This gets accepted with regularity on cast, but the rules are pretty clear that uncredited crew does not go in, period.  I presume that means you can't rely on external sources.  Granted, an oddball title like this that likely will get no votes one way or the other may slip in.  But it probably shouldn't, and don't be surprised if it is rejected.

Quoting T!M:

Quote:
Quoting gardibolt:

Quote:
This gets accepted with regularity on cast, but the rules are pretty clear that uncredited crew does not go in, period.

People keep saying that, but it's just not true. Ken has publicly stated that crew actually can be listed from an external-but-official source.

Not to be overprecise,
but the important words in Ken's statement were: "in this case".
"This case", if I understood him correctly, meant that there are no credits at all.

Quoting marnix64:

Quote:
I see that it has just been approved.

Glad to hear it. 
In cases like this I think I'd prefer to have proper information on the profile, even if it means bending the rules a little (a lot!).

In the long term, I wouldn't mind if Ken extended "uncredited" to crew as well, as long as the sources were very strict in the rules, ie: version of the same film with credits/first party sources only.

Quoting Silence_of_Lambs:

Quote:
Quoting T!M:

Quote:
Quoting gardibolt:

Quote:
This gets accepted with regularity on cast, but the rules are pretty clear that uncredited crew does not go in, period.

People keep saying that, but it's just not true. Ken has publicly stated that crew actually can be listed from an external-but-official source.

Not to be overprecise,
but the important words in Ken's statement were: "in this case".
"This case", if I understood him correctly, meant that there are no credits at all.

I can't find the thread right now, but if memory serves me well, I think he also accepted it for the Japanese animation Ponyo. I seem to recall so since I was the one who romanized the credits from the official Japanese website. The problem there was that all names of the people who participated, crew and cast, were intermingled with no defined role for anyone. So in those cases, I believe an external, official source would also be acceptable.