Try as i might, i can't find the original threads on this subject, even using Advanced search? I got this one from google, http://www.hotukdeals.com/item/129157/300-movie-rental-for-100-points-85-/all/deals/new
and it doesn't work??
Anyways, earlier today only the SD version of the download was reduced to 100 MS points, and the HD version was still 540 MS points. I just went to Video Marketplace through Xbox Live again, the first time i got an error message, then i got the page to come up and the HD version was available for 100 points and it's now downloading. Hope this helps someone who might not have bothered checking again.