Most valuable blu-ray title in your collection?

[stigdu]

This can be for sentimental reasons, or its net worth on sites like eBay, Amazon Marketplace, etc.

What do you believe is your most valuable blu-ray (or any film really)? (Shamelessly pilfered the idea from someone else's discussion about most expensive blu-rays)

I'll start:

Mine are actually a couple of DVDs. The Japanese release of Kill Bill which has the full colour sequence during the House of Blue Leaves fight as well as lots of other additional violent moments throughout the film, and the German DVD of Felidae, which you can see in my signature.

The former might be worth a little bit, not sure. The latter, I doubt is worth anything but it's valuable to me as it is an uncommon disc and a fantastic film to boot!

Over to you, boys n girls.