I am a massive fan of this film and I purchased it right away when I found out it had been released on blu ray. However, i was really disappointed with the blu ray transfer given to this little gem of a movie. The picture quality is not at all what we have come to expect from the blu ray format and really is not much better than the dvd version.
So if you are thinking about upgrading your dvd to this blu ray, then I would wait until the price comes down to around £5 because I think that it isn't worth more than that unless you really are a die hard fan of this movie, or just keep your dvd version, as you won't see much of a picture upgrade in the blu ray transfer.
Come on universal pictures, if you are going to release these titles on blu ray, then at least make sure that they are given decent transfers or don't bother at all!