There's never been a better time to be a superhero fan, because Hollywood is more invested than ever in bringing as many bankable comic book properties to the screen as humanly possible.
At present you can expect up to a dozen superhero movies to release in any given year - including animated films, of course - but for every one that makes it to cinemas, there are countless in-the-works comic book films that sadly never come to fruition.
Though these 10 superhero movies are all in some stage of development, it's honestly more apt to say they're in development hell, having failed to secure a concrete cast and crew alongside the all-important executive sign-off.
With each passing day making it increasingly unlikely that these films will ever actually see the light of day, it's probably for the best if fans just admit to themselves that they're never going to happen.
It'd be great to be wrong - in some cases, anyway - but Hollywood's overflowing graveyard of unrealised superhero movies suggests these projects are as good as dead...
10. Justice League Dark
Murmurs of a Justice League Dark movie go all the way back to 2012, when Guillermo del Toro started work on an adaptation of the darker, supernatural superhero B-team.
Updates were sporadic in the following years even as del Toro completed the script and hoped to roll his story into the DC Extended Universe. He eventually walked away from the director's chair in 2016 and was replaced by Doug Liman, but by mid-2017, he too had left the production.
The movie's official title was announced at 2017's San Diego Comic-Con, and that's the last concrete update fans have received.
One suspects that, especially in the currently volatile DCEU climate, Warner Bros. is extremely nervous about green-lighting an expensive, effects-heavy movie featuring a cast of heroes the general public doesn't know much about.
There's not really any feasible way to make the movie satisfactorily on a lower budget, and one suspects this thing's just going to languish in development hell until it's quietly cancelled. Fans will instead have to make do with the not-bad animated film released last year.