If any fans remain unconvinced by a debunking of a rapidly circulating rumor about "Justice League's" runtime perhaps, they believe the filmmakers, who had some fun with it on social media.

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The rumor, which quickly took hold online, apparently originated with the film's IMDb.com entry, which listed its runtime at 170 minutes, nearly 30 minutes longer than "Batman v Superman: Dawn of Justice." Setting aside that IMDb listings are notoriously unreliable, as they can be edited by users, the Warner Bros. film won't be released for another eight months. That latter point was hammered home Wednesday by TheWrap, which, citing an unnamed "insider," reported "Justice League" isn't even finished yet; no one at the studio knows the precise runtime yet.

But just in case that weren't enough, Jon Berg, Warner Bros.' co-president of production, took to social Thursday night to poke fun at the rumor, tweeting to director Zack Snyder, "Disappointed the JL movie is only 170 minutes ... also curious as movie isn't finished yet, but IMDB knows exact running time?"

Snyder replied, "Forgot to tell you that I screened the first cut of JL for IMDB. Thought that was standard WB procedure. No?"

@thejonberg @thejonberg Forgot to tell you that I screened the first cut of JL for IMDB. Thought that was standard WB procedure. No?— Zack Snyder (@ZackSnyder) March 31, 2017

That should probably put the rumor to rest, at least for now. As "Justice League" inches closer to its Nov. 17 release, speculation will undoubtedly reignite about just how close it will come to that three-hour mark.

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Fueled by his restored faith in humanity and inspired by Superman’s selfless act, Bruce Wayne enlists the help of his newfound ally Diana Prince to face an even greater enemy in “Justice League.” Together, Batman and Wonder Woman work quickly to find and recruit a team of metahumans to stand against this newly awakened threat. But despite the formation of this unprecedented league of heroes — Batman, Wonder Woman, Aquaman, Cyborg and The Flash — it may already be too late to save the planet from an assault of catastrophic proportions.

“Justice League” stars Ben Affleck as Batman, Henry Cavill as Superman, Amy Adams as Lois Lane, Gal Gadot as Wonder Woman, Jason Momoa as Aquaman, Ezra Miller as The Flash, Ray Fisher as Cyborg, Willem Dafoe as Vulko, Jesse Eisenberg as Lex Luthor, Jeremy Irons Alfred Pennyworth, Diane Lane as Martha Kent, Connie Nielsen Queen Hippolyta and J. K. Simmons as Commissioner Gordon.