Sebastian Stan: 'Avengers: Doomsday' Heartbreaking, No Final Cut

Sebastian Stan has not yet watched the final version of "Avengers: Doomsday" and predicts it will be devastating, TheWrap reports.

The star, who plays Bucky Barnes in the Marvel blockbuster, told Decider (via TheWrap) that he still hasn't seen the completed movie even though it arrives in theaters in about two months. "I haven't seen the movie, and I don't know how it turned out," he said. "I'm sure it's going to be probably heartbreaking, in a lot of ways. We'll see who makes it to the next level."

The cast of "Doomsday" includes Chris Hemsworth, Vanessa Kirby, Anthony Mackie, Letitia Wright, Paul Rudd, Florence Pugh, Robert Downey Jr., Chris Evans and many others, according to TheWrap.

Stan confirmed to the outlet that he got to reunite with the ensemble. "It was very nostalgic to look back, and think about all of these years that we've known each other, and grew up together," he said. "It's been a family and it never stops being that way."

While some fans have interpreted Stan's remarks as a hint that major characters will die, he and the filmmakers have previously noted that the production began without a fully written script. In August, Stan told a French newspaper that they were "just shooting scattered scenes" without a complete screenplay, per TheWrap. Directors Joe and Anthony Russo later explained that they treat the script as a "living organism" and that improvisation often generates better material.

"Avengers: Doomsday" opens in theaters Dec. 18. A sequel, "Avengers: Secret Wars," arrives Dec. 17, 2027.

• Avengers: Doomsday
• Bucky Barnes
• Chris Evans
• Marvel
• Robert Downey Jr.
• Sebastian Stan