Totally agree with this comment. Mixing all the reviews from other versions of a title film is totally confusing and unhelpful to the customer. With only a few comments it is hard enough to pick out the relevant ones but when there are thousands it is totally impractical. And the distribution of the star scoring becomes meaningless.
Come on Amazon - you can do better than this! Each variation has a unique entry in your database and you surely tag the comment against the entry to which it was posted. It surely takes more effort to combine all the comments by cross referencing all the entries for similar titles anyway, so why not just give us the comments that were posted against the specific version we are looking at?