Morgan Spurlock's 'Rats' documentary is the biggest horror film of 2016

This new documentary from the guy who brought you Supersize Me could be the most terrifying horror movie of 2016. Why? Because it's all real.

Rats sees Spurlock travelling to different cities around the world to look at man's relationship with rats, and has been described as a modern day horror film after debuting at Toronto International Film Festival.

The documentary's highlights (if you can call them that) include horrific live footage of a rat climbing through sewage pipes and up out of an unfortunate persons toilet (yeah, they do that apparently), and a delightful scene in which a researcher cuts a squirming maggot out from underneath a rats skin.

When introducing his new documentary at the film festival, Spurlock revealed how it was actually the horror film Scanners that inspired him to create films in the first place, "When the man's head explodes, it changed my life forever, because that moment made me want to make movies,"

"With Rats, I said, 'What if we made a documentary as creepy, as scary, as weird, as dark, as uncomfortable as a typical horror film?"

When asked about the most disgusting and surprising thing that he had learned about rats during filming, Spurlock told nofilmschool.com - "The things I think were surprising to me were when we were talking to the scientists, they talked about how quickly rats evolve. From generation to generation, they will be able to pass a mutation down and become more immune to certain poisons. That quickly. Then the fact that they can carry so many diseases that won't affect them at all—they'll be completely immune to them—but can ultimately kill us as humans."

Rats is especially scary due to its genre-bending story-telling approach and horror-esque visual appearance. However the really terrifying thing about the documentary is that while after watching a traditional horror film you can take some comfort in the knowledge that it was just a film, Rats is very much factual, it's happening all around you right now, and there is no getting away from it.

Rats will air on Discovery on the 22nd of October, with Spurlock advising would-be viewers to "Sit back, relax and check under your seats."