Amazon Unbox and Subtitles
I purchased Save The Green Planet

Thinking the problem was somehow related to Tivo I downloaded the movie to my PC but had the same problem. After trying in vain to find out what I was doing wrong or what the problem was on my end I found an entry in the Unbox FAQ that addressed my problem – Unbox does not support subtitles or closed captioning but they hope to offer it real soon now.
I wrote Amazon to complain about this problem today and received a reasonably quick response:
Greetings from Amazon.comI sincerely apologize for the problem you encountered with Save The Green Planet. As a standard policy, Amazon Unbox videos are not returnable once the order has been placed.
However, because of the circumstances I have made an exception and issued a refund for $9.99. This refund should go through within the next 2 to 3 business days and will appear as a credit on your next credit card billing statement.
As part of the return/refund process, I have also revoked the license for this video. It will no longer appear in Your Media Library and you will be unable to play any copies you may have downloaded.
Thank you for contacting Amazon.com
I am happy that I received a refund, but I am disappointed that Amazon chooses not to explicitly disclose the absence of subtitles and closed captioning clearly and explicitly on their Unbox purchase page. Instead they bury that disclosure on a FAQ page that few customers would bother to look for until after they have problems. They appear to be addressing the issue, but in a slow and inefficient way and only for foreign language films. For example, The Umbrellas of Cherbourg