I have looked forward to this on BD for a really long time, so I felt a bit shortchanged when it was announced that a) The US version is region-locked and puts its bonus material on a 2nd disk, giving the movie a whopping 48 out of 50 GB disk space and b) Fox's European BD is a single-disk only. Since they'll put everything on one disk instead of two, picture quality is bound to suffer. What a shame.
I'm the original poster, and I don't believe I said that the European version was a 2-disc BD set. On the contrary, I bemoaned the fact (?) that it was 1 BD + 1 digital copy. I purchased the film from Amazon UK, and there is only one BD, the other being a plain dvd. I haven't seen reports to the contrary, other than your post. But if you know different, I'll be happy to hear about it.