Netflix subscribers are about to lose two of sci-fi's defining films. Alien and Aliens leave the service on December 1, per Polygon, giving viewers only a few weeks to stream Ridley Scott's R-rated 1979 original and its acclaimed sequel before they rotate out.

Scott's Alien remains one of the most influential genre films ever made — a slow-burn haunted-house movie set aboard a commercial starship that launched a franchise, a scream queen in Ripley, and decades of imitators across film and games. Aliens flipped the formula into action-horror and is routinely cited among the best sequels in cinema history.

Streaming departures like this have become a monthly ritual as licensing deals lapse and studios shuffle catalogs between services, but these two sting more than most: they're perennial rewatch material, and the franchise's fingerprints are all over gaming — from Alien: Isolation to every claustrophobic corridor shooter since.

If they've been sitting in your queue, the clock is running. After December 1, you'll be hunting for them on another service or going physical.