Though it sounds like a schlocky concept, the Alien vs. Predator franchise has proven enduring in pop culture. The concept of two major 20th Century Fox killer aliens (the Predator and the Xenomorph) ...
Alien vs. Predator sparked debate on its official canon status due to timeline conflicts in both franchises. The shared universe was confirmed by a xenomorph skull in Predator 2, showing they coexist ...