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But what’s even better than a theory about an active property is one about an older one that will probably never get debunked. That way, the party keeps going, and no one has any hope of shutting it down. Here are seven sci-fi movie theories that change how you watch the movie.
7) Rick Deckard Is a Replicant

Harrison Ford has played more than a few memorable characters, but none are more complex than Rick Deckard. In Blade Runner, Deckard, a former police officer, is tasked with hunting down rogue androids known as replicants. However, his whole world gets turned upside down when he meets Rachael, a replicant who believes she’s human. Ridley Scott leaves behind enough bread crumbs in Blade Runner to make it seem like Deckard is in the same boat as Rachael, and the sequel, Blade Runner 2049, doubles down by focusing on a replicant who’s also part of the police force.
6) Jurassic Park‘s Dinosaurs Are Fake

Humanity pulls off the impossible in Steven Spielberg’s Jurassic Park, discovering a way to bring dinosaurs back from extinction. The process is pretty complicated, with scientists using mosquitoes that fed on dinosaurs as the backbone of their research. It all sounds pretty far-fetched, which has given the theory that the dinosaurs were fake real steam. Another explanation is that the creatures that call the titular park home are created by splicing together the DNA of other animals.
5) Inception Takes Place Entirely in a Dream

Christopher Nolan isn’t in the business of creating stories that are easy to follow. Inception follows a crew of criminals who enter people’s dreams to extract information or plant ideas. But they don’t just stop at one level; some scenes take place in dreams within dreams. That opens the door for fans to speculate that the entire movie takes place in a dream. With all the moving parts surrounding Cobb, it may be that Inception is a deep dive into his mind.
4) Signs‘ Aliens Are Actually Demons

M. Night Shyamalan is famous for his twists, and one of his most notable ones comes in his sci-fi movie Signs, which sees humanity stop an alien invasion using water. But one theory posits that the Hess family isn’t battling an extraterrestrial threat but a biblical one. After all, the mysterious creatures arrive in the middle of Graham Hess’ crisis of faith following the loss of his wife and force him to wrestle with his own demons.











