Seasons upon seasons of foreshadowing all for nothing. Everyone in Westeros thought Jon Snow (or at least someone) and the Night King were going to duel, but not before we got a better look at the Night King as a character. Ayra sniping this baddie was a nice twist, however, it was at the expense of some well-deserved closure. The Night King is just an ice monster.
Anyone familiar with Richard Matheson's I Am Legend was disappointed with this adaptation's ending. Instead of a philosophical gut-punch, we received a contrived self-sacrifice (which really didn't make any sense). If the film's alternate ending is any indication, the filmmakers weren't sure how to fight the darkseekers either.
Two of the biggest comic book characters of all time pitted against each other, make peace over the utterance of one name, "Martha."
This film found itself in the unique position of possessing two heavily anticipated boss battles...and it ran out of lives faster than you could frantically scream cheat code. Fan backlash was the result of Snoke's swift demise and a nonexistent fight between Luke [enter antagonist here].
There are many reasons season 8 of The Walking Dead didn't really work, not the least of which is its mismanagement of the "All Out War" arc from the comics and an anti-climactic confrontation with Negan.
No Country for Old Men brought us one of the most memorable sociopaths in cinematic history. Ripe with an intertwining narrative, it seemed only a matter of time before a showdown between Javier Bardem and Tommy Lee Jones...that didn't happen.
President Snow needed to die, and he did. One expected he'd become a voice of reason in the process.
The anti-climatic vibe here might have something to do with the film's inability to end...Regardless, Sauron never embodied anything more than an eye; while the battle was climatic the boss was anything but.
Supernatural's creator, Eric Kripke originally intended to end the show after 5 seasons. Everyone had the battle between Michael and Lucifer (and possibly God) to be the battle to end all boss battles. It's hard to shake the anticlimactic feeling here; the original ending obviously being altered in order to warrant a 6th season.
H.G. Wells' ending to War of the Worlds is infamously anti-climatic. In Speilberg's lackluster adaptation it is made even more so; the abrupt demise of the invaders due to disease feels nonsensical within a blockbuster narrative.
The real boss should've been the machines, period. Agent Smith seems like a scapegoat, an easy solution to writing oneself into a wall. The machines were the villains of the entire trilogy, but once Agent Smith becomes the boogeyman, they become an ally.