To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
This isn’t a review of Des or David Tennant. However, no where online does this item say it will only play in the UK. I’m in the US and it can’t be played in any of my players. So, 5 stars to Des and DT, 1 star to whomever wrote the listing leaving out its region specific details.