About the Japanese Blu-ray
A few weeks ago I found out that a Blu-Ray was released in Japan, and because I'm a huge fan of the film (but didn't own the DVD), I decided to shell the somewhat steep $50 (with shipping) to import it to the US, from Amazon.
The whole packaging and most menus as in Japanese, but it's easy enough to navigate. Here's the problem tho: it didn't seem HD at all. It seems to me that they simple put the DVD master on the blu-ray, and didn't really re-import from the films themselves.
It's also possible that they did, indeed, re-import in HD, but the original film is so grainy, so raw, so "unpolished" (I mention all that in a good way, I love the rawness of this movie). And so it doesn't matter much if it's in HD or not.
It also has a few extras, including an interview with what I believe is Corbucci's wife (in Italian, and no english subtitles, so I couldn't tell for sure). It has the famous alternate ending, with sound (IIRC the DVD version was silent, right?).
I don't regret the purchase, I finally own it. And maybe I'm wrong and it's slightly better than the DVD master.