I have some doubts on how to profile this BLu-ray combo.
The Blu-ray combo exists of different expeditions from alll over the world.

Now, at this moment I contributed the profile for the main documentary South with a runtime of 81 minutes and country of production the UK and production year 1919.

Or should I profile it like all documentaries. Then the runtime would be 234 minutes, production countries would be taken from the 3 longest docs in runtime, being UK, Australia and Norway and production year would be 1898.

Any suggestions?

It's a beautiful release, that's for sure.

But the way BFI listed the features on the BD makes me wondering if South is the only main feature here.
You have to select an expedition first, they are listed chronological. After that you can select a play all or just select a part of the expedition. I listed this as a play all and chapter selection.  The other expeditions I've selected them as Featurettes.