Joe and Anthony Russo say no fan has ever successfully predicted what happens 'Avengers: Endgame'.
The directors - who have helmed the upcoming blockbuster, 'Avengers: Infinity War' and two 'Captain America' movies in the Marvel Cinematic Universe - admit some fans have "got kind of close" to guessing plot details of the superhero flick, but nobody has ever calculated "exactly" what will happen in the movie, which is set for release on April 25.
In an interview with Jake Hamilton, Anthony said: "Here's the thing, the fans are so passionate and they spend such a long time living with these characters, thinking about these characters, and they're using their imaginations to follow where these stories could possibly go.
"Sometimes they're wildly off; sometimes they're kinda next door to what might happen ... Here's the thing, nothing's ever that close. You can get kinda close, but it's never exactly."
Joe added: "Our mission's always to surprise people. So we try to make really surprising choices."