Laying back and enjoying a nice movie is one of the finer things in life. Unless, of course, they're intent on working your brain into overdrive all in the name of entertainment. Wait, isn't this supposed to be fun?
Intent on making you go full conspiracy theory on figuring out the twists and turns of the narrative, these films take pleasure in making a cinematic experience one of pain and difficulty, turning into maths equations and cork boards full of clues to just simply understand how we got from A to B.
Born from the science fiction genre, being an actual bloody engineer sometimes isn't enough to decode the tricksier bits - especially when we're talking time travel, alternate dimensions, parallel universes, and good old double timelines. Occasionally it will all fall into place, but more often than not, some back to back reruns and a nice flow chart is required to get to the bottom of it all.
So get your thinking cap on if only to hold your brain in when your head explodes, as these are the films that will truly blow your mind. Unless you're a genuis, in which case I'm not sure what you're doing here...