Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buyer Beware

This is a great movie, but unfortunately many of the sellers are purveying Region B discs which do NOT play in the US on standard blu-ray players. The 3 disc version is probably safe, but the single disc version is most likely not Region A or regionless. When buying from such vendors ask ahead of time what region it specifies because the listings are not specific. If you buy from Amazon, you can return it without paying for postage, but if third party vendors will probably not refund the postage.I can not review the movie further because it will not play.