Amazon’s Blu-ray Deal of the Week this time includes Alien, Aliens, Alien 3, and Alien: Resurrection all dropped down 64% to $12.49 each. All four of the Alien movies on single Blu-ray discs will cost you $49.96. The sale will run through July 16. Here’s a direct link. You can also get the Alien Anthology for $68.98 (List: $139.99), a boxed set with all four films along with 65 hours of archival and never-before-seen content.