Amazon's Blu-ray Deal of the Week affects selected horror-movie bundles from Lionsgate and Sony Home Entertainment. Through October 12th, Amazon is offering each Blu-ray for 40% - 57% off its standard MSRP.
This is probably old news, but just in case any new folks are looking at this. Make sure to read the description on the Scream set. It is only Scream 1-3, it does not contain Scream 4. You get all three feature films and all of the previously available extras, plus you get two feature length documentaries on the other two disks. All in all, a very good price and content, just know you don't get Scream 4.
Just realized, I made a mistake in my post and said the two documentaries from the Scream set are on the other two disks. Actually, I meant they were on the 4th disk. Still a good deal. I agree dlemond, would be nice when Amazon does this they at least set the price at least equal to the lowest previous price.