Paramount Pictures

Sometimes fan theories actually improve films, but quite often they sound like exactly what they are - the wild ravings of someone unsuited to filmic intepretation or too emotionally invested in a terrible film to see their theories are little more than empty, ridiculous bluster.

We're not looking at things like the excellent and completely plausible Codename: James Bond theory (which would have worked up until the point Skyfall decided to show Bond's parents' graves), or the Ferris Bueller/Fight Club theory. Those carry too much weight, and those chosen for this list are one step above the lunacy scribbled on the walls of public toilets, but which do have compelling seeds within them.

Yes they're utterly bonkers, but they could well be real...