Marvel Secrecy: Avengers Doomsday Cast Kept in Dark

"Avengers: Doomsday" is shaping up as one of Marvel's most anticipated films in years, but it turns out even some of the actors appearing in it don't really know what's going to happen in the movie.

Sebastian Stan, who has played Bucky Barnes in the Marvel Cinematic Universe for about 15 years, revealed that during filming he never received a complete script. Instead, the cast shot separate scenes without understanding the bigger picture or how everything fits together.

"We didn't have a full script. We just shot scattered scenes," Stan said about working on the film. According to him, it's a different working method where things continue to change and evolve throughout production.

But behind this approach lies one of Marvel's biggest obsessions: protecting plot secrets. Stan explained that producers preferred actors not read the entire script, partly to prevent situations where journalists could extract details from them during interviews.

For him, it's already routine. After about 15 years inside the Marvel universe, Stan said he's grown accustomed to the strict confidentiality rules.

Marvel's extreme secrecy measures aren't new. Over the years, various actors have reported receiving only the pages relevant to their own scenes, and sometimes significant details were kept from them until particularly late stages of production.

But in "Doomsday," the secrecy takes on special significance. The film, directed by the Russo Brothers, is expected to bring together a massive number of characters and teams from the Marvel universe, with Robert Downey Jr. at the center, returning to the MCU this time in the role of Doctor Doom.

Alongside him are expected to appear heroes from the Fantastic Four, characters from the X-Men, and veteran and new MCU stars. Stan himself is returning as Bucky, following the events of "Thunderbolts."

So, who does know how all the pieces connect? By estimates, the list is extremely limited and includes Marvel Studios president Kevin Feige, directors the Russo Brothers, the screenwriters, and Robert Downey Jr. Beyond them, it appears even the major stars of "Doomsday" are in the dark.