No matter how great a film might be, all of that fine work can be completely undone in the final moments, as filmmakers must decide the most appropriate and dramatically resonant way to bring their story to a close. Writers and directors screw this up all the time, and then sometimes, they go the extra mile and flat-out troll viewers, delivering a provocative ending deliberately intended to infuriate, mystify and have you talking about it for weeks after. These 13 movies, a mixture of terrible, good and brilliant projects, have all baffled audiences ever since they first hit screens, both for better and for worse. We've got relentlessly bleak endings which flew in the face of the expected Hollywood climax, endings that just didn't know when to say "enough", endings blatantly trying to shock for the sake of it, and one ending that left us on the verge of a nervous breakdown. If you try and talk about any one of these films, it's not long before the ending will be thrown into the discussion, and you'll have a big, messy can of worms on your hands. Whatever the reason, these films totally trolled us, and we can't help but imagine each director laughing to themselves as they learned of the perplexed reaction from cinema-goers. What do you make of these absurd endings? Did we miss any of your favourite mind-bogglers? Let us know in the comments!