I am sorry, but it just doesn't make sense to leave it blank...at least not to me.  It's like leaving the title field blank because there isn't enough room to fit the whole thing and deciding which words to abbreviate is arbitrary.

Some valid data is better than no data at all.

Of course the other problem for some films with entering CoO from the first listed production company is that the country for that company is not listed.  For example:

- En la Cama - Chile/Germany (primary company is Chile, but we would have to list Germany for Black Forest Films...)
- Mongol - Kazakhstan/Germany/Russia/Mongolia (primary country is Kazakhstan, but we would have to list Germany for CTB Film Company...)
- Osama - Afghanistan/Netherlands/Japan/Ireland/Iran (primary country is Afghanistan, but we would have to list Ireland for LeBrocquy Frasier Productions...)

Then you have the problem of productions like Robotech.  The animation was produced as Macross, Super Dimensional Cavalry Southern Cross, and Genesis Climber Mospeada but then those three series were cut & edited together and new plot, characters and scripts created and voice actors cast & recorded to create Robotech.  So all the animation would list for Japan as CoO, but Harmony Gold did all the editing, script, and vocal work for Robotech, so everything else would list for US as CoO.  How do you choose at that point?

This is why we need the option of "multiple" for CoO, or the checkboxes that dee1959jay mentioned.  Either one would solve the problem for international co-productions.

We also need more countries.  Our selection is extremely limited right now.

Quoting Gemini76:

Quote:
I can't see CoO mentioned anywhere in the rules, so I guess I'm either blind, or we should interpret this any way we'd like.

You're not blind, there's nothing in the rules about how to use CoO. The only mention for "Country of Origin" is for Original Title & Production Year for TV series. The only official reference I found relating to how Invelos wanted it to be used was the thread I linked in the OP.

I was surprised by this film where the original title is "Funny Games U.S." but it's not a US film (as far as we're concerned) and yet, all entries currently have it listed as US.

Although it doesn't mean it's officially supported by Invelos, my submission changing CoO to UK for this has been accepted & released.

If I understand you correctly, you'd go for the majority, and if there is none, the first listed. I could live with that. What's not in the current CoO list can't be used and would not count, obviously.