There's plenty of films out there that know exactly how to deliver a good twist. Whether it's critically acclaimed fare such as The Usual Suspects or Fight Club, or mind bending indie flicks like Primer and Coherence, a solid narrative underpinned with some dastardly secrets can entirely make a film.
But sadly, it can also break it. When plot twists aren't given everything they need to grow big and strong, a last act 180 can destroy everything a movie has carefully planted up to that point - throwing deal-breaking moments on screen that can undermine nuanced character work in a heartbeat, and defy the very rules the piece has spent so long setting up.
Sometimes, there was perfectly good alternative options on the cards, and sometimes, filmmakers put all their eggs in one basket and count their chickens well before the time has come, instead of hatching up something worthwhile.
Collecting together eight such offenders, this list explores the movies that would have stood up much better if their endings hadn't decided to push it that step too far. Clever? No. Entertaining? Sometimes. Ridiculous? Like you wouldn't believe.
8. Iron Man 3
Marvel has come a long way in setting up the ultimate cinematic universe. Defining the superhero genre as a breath of fresh air back in 2008, it's been ten years of movies that have been the cornerstones of conversation every year, both fun and funny in equal measure. At their heart though, they're science fiction movies, and ones that took some experimentation to get exactly right.
Iron Man 3 is one such film. Directed by Shane Black, he decided to throw caution to the wind to make the film in his own style, and as such, altered one of the comics' most anticipated villains to appear on screen. Utilising the fan craze for The Mandarin, Black marketed his movie as a show down between Iron Man and said villain, only for it to be revealed halfway through that the character was in fact a bemused actor disconnected from the main adversaries of the plot.
Whilst in fact an entirely successful plot twist for a giant summer blockbuster, it's one that annoys fans to this day - lamenting the wasted source material and deviation from expectation.