15 Devilishly Clever Movie Secrets You Probably Missed
11. The Alien/Predator Crossover Is Established In Predator 2
The Alien and Predator franchises were two of the most iconic and successful science fiction franchises in the 80's, so it was only a matter of time before someone would come up with the genius idea of a cross-over. This led to the Alien Vs. Predator franchise, which spanned a video game series and a few incredibly lacklustre films released in the past few years.
But the Alien-Predator crossover actually dates back to 1990, when Predator 2 was released. The film features a scene in which Danny Glover's character discovers the Predator's trophy room. Hanging on the wall amongst an assortment of exotic skulls is what is clearly the cranium of a Xenomorph, from the Alien series. This isn't a very secret easter egg, but it's a clever nod to a fellow franchise all the same.