Even Robert Downey Jr. Hasn't Seen 'Avengers: Infinity War' Script

Chris Evans as Captain America; Robert Downey Jr as Iron Man. Facebook Chris Evans Online

Chris Evans as Captain America; Robert Downey Jr as Iron Man. Facebook Chris Evans Online

Directed by Joe and Anthony Russo, Avengers: Infinity War stars Robert Downey Jr., Chris Evans, Chris Hemsworth, Mark Ruffalo, Jeremy Renner, Scarlett Johansson, Paul Bettany, Anthony Mackie, Paul Rudd, Elizabeth Olsen, Tom Holland, Benedict Cumberbatch, Chadwick Boseman, Chris Pratt, Zoe Saldana, Dave Bautista, Bradley Cooper, Vin Diesel, Tom Hiddleston and Josh Brolin, among others.

There is nobody who can take over Iron Man from Robert. "We worked really hard to protect the secrets of the movie because this is the end of 10 years of storytelling and I think a lot of people [have] emotionally invested quite a bit into the Marvel Universe so we want to make sure they have the best experience they can have when they go in to see the movie", Joe Russo shared with Kinowetter. As you can see in the full video (via ComicBook.com), co-director Joe Russo's answer centered around it requiring a team effort. He never mentioned to us about leaving Iron Man, but it will happen at some point of time.

Russo continued: "He can't play the character forever". But he loves playing the character, I know that, and we love working together.

Robert Downey Jr said, "I read in some magazine that the No. 1 fan-voted moment was the airport fight in CAPTAIN AMERICA: CIVIL WAR because there are so many superheroes at once". Thus, it's very much understandable that the folks at Marvel Studios keep their cards as close to their vest as humanly possible when it comes to anything regarding Avengers: Infinity War. The sequel to Spider-Man: Homecoming hits on July 5, 2019, and Guardians of the Galaxy Vol. 3 lands in 2020.

That being said, he did acknowledge that Downey may be replaced at some point along the way, although he seemed to indicate it would be more in the context of a reboot than him simply being replaced a la Edward Norton as Bruce Banner in the early years of the Avengers series.