No matter how good or great a movie might be, if you get the ending wrong, it's all that people are going to remember. Screw up those final moments and audiences won't be able to get that sour taste out of their mouths.
And so it's little surprise that filmmakers and especially studio executives agonise over how their movies wrap up, because it can mean the difference between box office glory - even franchise potential - and word-of-mouth falling off a cliff overnight.
It's extremely common for Hollywood films in particular to shoot numerous endings as "insurance," or even go back and film an alternate climax following unfavourable test screening reactions, for better or worse.
While sometimes these endings are released on home video, the majority of the time we're sadly never given access to them, ensuring that they're only ever witnessed by the crew, studio personnel, and those ever-lucky test audience members.
These 10 original and alternate horror movie endings have never seen the light of day and are effectively considered lost to the ether, despite the fact that fans would absolutely love to get their hands on them...
10. Michael Gets Shot With A Crossbow - Halloween (2018)
David Gordon Green's 2018 Halloween sequel concludes with Laurie Strode (Jamie Lee Curtis), her daughter Karen (Judy Greer), and granddaughter Allyson (Andi Matichak) trapping Michael Myers (James Jude Courtney) inside the basement safe room of Laurie's home before setting it on fire.
But Green's original scripted-and-shot ending for the film was quite different, with Michael mortally wounding Laurie in a knife fight, before Karen shows up and shoots Michael with a crossbow.
The film ended with Laurie seemingly succumbing to her wounds while Michael wandered off into the woods to apparently bleed out, yet this ending ultimately didn't score well with test audiences, and so was eliminated through reshoots.
Beyond a single, fleeting glimpse of actress Judy Greer holding the crossbow in B-roll footage, the original ending hasn't been seen outside of secretive, NDA-clad test screenings.
The inferno climax we got certainly sounds like a more impactful way to end the film - and led to a killer opening sequence in Halloween Kills - but it'd still be neat to see this alternate take.