10 Movie Scenes That Unexpectedly Confused Audiences

Denis Villeneuve's Enemy is a delirious, entrancing film about a college professor, Adam (Jake Gyllenhaal), who discovers his own doppelganger, and while there's an undeniably surreal tenor to the movie throughout, it's nevertheless relatively easily understood in pure narrative terms.

That is, until that terrifying final scene.

The movie's ending sees Adam assume the life of his double, Anthony, who has been killed in a car crash.

But just as Adam enters the bedroom where "his" wife Helen (Sarah Gadon) is, he finds her replaced with a gigantic tarantula, which upon seeing Adam cowers into the room's back wall. The End.

It's an absolute WTF ending any way you slice it, and has been dissected to death by film fans in the pursuit of uncovering a concrete meaning.

Some believe that the spider is representative of Adam's oppression, or that it may embody his own fear of commitment and, on a broader level, women.

There's certainly no concrete answer and Villeneuve has shied away from discussing the ending in much detail, ensuring it's still passionately debated a decade later.