This boxset is missing most of the extras that the US and Dutch boxsets have. The reason for this is they seem to have taken the original (single layer DVDs) movies from the first 5 disk boxset and just added the new last two disks. Only the two new disks have all the extras. The 40 page booklet is the only nice thing in it.
This is likely to be Burt Lancasters greatest movie. But it's all about people on horses having them shot from under. The BBFC removes all horse falls from UK releases of Dvds, so the result makes no sense at all. Buy the uncut German version.