Making a movie is no quick and easy task, especially when the production suffers some serious setbacks, such as money issues, rewrites, casting changes, or just your everyday film disputes.

But after a company announces a film — especially a film adaptation of a book — fans usually end up counting down the days (or years) until they can see the finished product on the big screen. Unfortunately, these eight movies have hit pitfall after pitfall and may never actually get made.

Of course, there's always hope. It took Ryan Reynolds 11 years to get Deadpool off the ground and into movie theaters, and look how well that turned out.

Zombieland 2

After the success of Zombieland in 2009, there's been talk of a sequel ever since. On February 16, 2011, Rhett Reese, who co-wrote Zombieland, tweeted out, "Don't believe all the articles. We will be returning to Zombieland." Around this time, star Woody Harrelson told Total Film he was ambivalent about doing a sequel to horror-comedy. "I don't feel like a sequels guy."

In September 2014, Deadline reported Sony Pictures hired Dave Callaham to pen the sequel and Ruben Fleischer will return to direct.

This past Saturday (February 20), the podcast The Q&A interviewed Reese and Paul Wernick about Deadpool, of which they co-wrote the script. Reese revealed, "It’s actually still in development over at Sony. They’ve had a couple writers take a crack at it. We’re still exec producers and we’re guiding and helping where we can ... I think it has to be right. I think all the actors and Reuben all feel like there’s no reason to do it again if we’re not getting it exactly right."

Devil in the White City

Based on the Erik Larson book of the same name, this movie's been in development for over 10 years. Both Leonardo DiCaprio and Martin Scorsese are attached to the project.

The book tells the true story of America's first serial killer, H.H. Holmes, who murdered TONS of people during the 1893 Chicago World's Fair. DiCaprio will, of course, play Holmes, but the matter of when he'll play him is still up in the air.

Deadline reported back in August 2015 that Paramount won the bidding war for the book, but updates about the film have since been silent.

Looking for Alaska

John Green's beloved novel isn't having the smoothest transition to the big screen. Like The Devil in the White City, Looking for Alaska has been in development for over 10 years. A recent setback is probably the most heartbreaking one: Paramount Pictures doesn't want Green involved with the project. (Full Disclosure: MTV and Paramount Pictures are both owned by Viacom.)

Back in June 2015, Green proudly announced on Twitter the movie found its director, Rebecca Thomas, and he went so far as to write, "IT IS REALLY HAPPENING," blatantly addressing the ridiculously long process of bringing this film to life. But the movie hit a major setback in September due to "casting woes." With that, plus the recent Green news, we'll be lucky if our grandchildren ever get to see this movie made.

Sandman

Based on Neil Gaiman's DC/Vertigo comic series of the same name, the film is slated to be directed by Joseph Gordon-Levitt and produced by David Goyer. While it doesn't seem to have been in development for as long as other films, it's still been in the making several years now.

In October 2015, Goyer told Collider a mysterious writer was coming in to work on a new draft. Since then, silence.

It

The newest adaptation of Stephen King's horror book involving kids terrified by a killer clown was confirmed in December 2014, as was news of Cary Fukunaga taking on the role as director. Plus, It will be divided into two movies, not one.

In May 2015, it was announced The Maze Runner actor Will Poulter would play Pennywise the Clown. Nothing else was announced until recently. Collider learned a few days ago that the film "will hopefully be shooting later this year" and will be rated R (as it should be, because kids die, and clowns are scary AF).

Chaos Walking

Based on Patrick Ness's dystopian young adult trilogy, Chaos Walking was acquired by Lionsgate (the same folks who did a little thing called The Hunger Games), and Robert Zemeckis was in negotiations to direct the movie back in September 2013.

Almost a year later, Jamie Linden, screenwriter of films such as Dear John and Money Monster, was set to write the screenplay. Charlie Kaufman originally wrote the adapted screenplay, but it sounds like Lionsgate is switching writers.

That's it. That's all the info out there. Linden's writing credit isn't even on his IMDb page yet. If things keep moving at a snail's pace, looks like Ness will have time to write three more big-hit trilogies before we see the first Chaos Walking movie get made.

Kill Bill: Vol. 3

Quentin Tarantino told MTV News we'd have to wait a whopping 10 years before he'd explore the next chapter in the Kill Bill series. That was back in 2005; it's now 2016, Quentin. Let's do the math here.

Uma Thurman liked the early ideas Tarantino shared with her, but any progression on the film seems to have hit a brick wall. And to twist the knife in further, Tarantino said in an interview with What The Flick?! that Kill Bill: Vol. 3 remains a "possibility," but he should probably stop saying it's "a probability." Welp.

MTV News even wrote up a list of reasons we need this movie to happen. Hear our cries, Quentin!

Life Size 2

Life Size debuted 16 years ago this year. In January 2014, star Tyra Banks confirmed a sequel was happening, and in December 2015, she announced she'd reprise her role as the doll-turned-human, Eve.

Nothing more's been said about the project since then — of course, it's only been a couple of months — but I feel like we've been waiting for this movie forever. Guess we'll just having to sing "Be A Star" until more news drops.