The marketing campaign for Avengers: Doomsday slowly picked up this week with the Marvel presentation at the Shanghai Expo. However, a rumor began circulating this week. Recent updates from YouTuber John Campea and World of Reel's Jordan Ruimy have Marvel fans worried because they both said that the team behind the movie is having a hard time in the editing room.Jordan Ruimy cited shooting without a completed script and the presence of over 60 characters as the reason behind the Avengers: Doomsday team's post-production woes. The World of Reel article states that the Russo Brothers were hoping to make the movie work in the editing room but are facing difficulties due to juggling over 60 characters.Are there any credibility to the rumors of Avengers: Doomsday being a mess:Monark @mon_arkYTLINKAbout 20 minutes ago on his showIt seems YouTuber John Campea said that the upcoming Avengers movie is facing post-production issues during his show on Thursday. The popular YouTuber made this revelation while expressing his excitement for Doomsday. Jordan Ruimy echoed Campea's sentiments in a World of Reel article on Saturday. Ruimy revealed that the source who told him about the MCU Blade's cancellation also informed him about the upcoming Avengers movie's woes:"That same source reached out to me again this week after John Campea reported on his popular podcast that the post-production process for “Avengers: Doomsday” was not going well, with editors struggling to assemble the behemoth of a film. The gist of Campea’s source, shared on his YouTube show, was that directors Joe and Anthony Russo weren’t “finding the movie in the edit.” “Apparently, when they shot the movie, everything felt great, everything looked great… but now that they’re editing, they’re discovering some issues.”"The same article went on to reveal that the Russos and the rest of the Doomsday team are experiencing friction in the editing bay. However, the director duo and Marvel are expecting to iron out the issues with the movie. Therefore, Marvel is still sticking to the 18 December 2026 release date, i.e., the same day as Dune: Part Three.As for the credibility of these rumors, it should be taken with a grain of salt. However, it would not be surprising if the stories of Avengers: Doomsday being a mess were true. Given stories of Marvel Studios' frequent habit of filming movies without a finished script, making reshoots necessary.Jordan Ruimy also describes Doomsday as a cameo fest: View this post on Instagram Instagram PostDescribing the movie as a cameo fest, Ruimy's article became a bit more supportive of the MCU project. The article shockingly revealed that over sixty actors are a part of the movie.Twenty-seven actors were already confirmed to be a part of the Avengers: Doomsday cast last March. They are:Robert Downey Jr. - Doctor Doom/Victor von DoomTom Hiddleston - Loki (The God of Stroies is right underneath Doom)Chris Hemsworth - ThorChris Evans - Steve RogersPaul Rudd - Ant-Man/Scott LangAnthony Mackie - Captain America/Sam WilsonDanny Ramirez - Falcon/Joaquin TorresFlorence Pugh - Yelena BelovaLewis Pullman - Sentry/Bob ReynoldsSebastian Stan - Winter Soldier/Bucky BarnesHannah John-Kamen - Ghost/Ava StarrDavid Harbour - Red Guardian/Alexei ShostakovWyatt Russell - U.S. Agent/John WalkerSimu Liu - Shang-ChiLetitia Wright - Black Panther/ShuriWinston Duke - M'BakuSir Patrick Stewart - Professor X/Charles XavierSir Ian McKellen - Magneto/Erik LehnsherrJames Marsden - Cyclops/Scott SummersChanning Tatum - Gambit/Remy LeBeauKelsey Grammer - Beast/Hank McCoyRebecca Romijn - Mystique/Raven DarkhölmeAlan Cumming - Nightcrawler/Kurt WagnerPedro Pascal - Mister Fantastic/Reed RichardsVanessa Kirby - Invisible Woman/Sue StormJoseph Quinn - Human Torch/Johnny StormEbon Moss-Bachrach - The Thing/Ben GrimmHowever, Marvel confirmed that more actors and characters will appear in the movie. We can expect to learn more at San Diego Comic-Con this year.Do you believe in this particular Avengers: Doomsday rumor?