Follow us on Google News
Get the latest updates directly in your Google News feed
It looks like Robert Downey Jr. and Tom Cruise are just meant to have their names and roles linked together. Even before RDJ landed the role of Iron Man, Cruise was already in the running to play him. That casting choice still gets talked about when people discuss the superhero. But not long after that, both actors found themselves in a similar situation again.

This time, the difference was that even though Cruise was being considered to replace Downey in another movie, someone else ended up getting the role. The thing is, RDJ had already started working on the project, when he suddenly dropped out. So, what really went down?
Robert Downey Jr. Was Originally Cast InGravity, But He Had To Drop Out
It looks likeRobert Downey Jr.andTom Cruiseshare something that directors really notice. Both have been up for the same role more than once, and not many people know about it.
After Marvel, it was directorAlfonso Cuarónwho decided to take a chance on RDJ, but things didn’t go as planned. The 2013 filmGravity, starringSandra BullockandGeorge Clooney, went on to win seven Oscars — the sci-fi movie was a huge hit with both audiences and critics. However, the production initially kicked off with Downey in the lead role.

Robert Downey Jr.’s Net Worth in 2025: From Iron Man, Oppenheimer to Dr. Doom
Everything seemed to be going smoothly, but a certain detail started to bother the Iron Man actor. In an interview withThe Hollywood Reporter, Cuarón mentioned that he wasn’t comfortable with the technology they were using for the film:
I think Robert is fantastic if you give him the freedom to completely breathe and improvise and change stuff. [But] we tried one of these technologies, and it was not compatible. After that, we [had a] week that we pretended as if nothing was happening, and then we talked and said, ‘This is not going to work. This is tough’.

The reason was reportedly claustrophobia. Downey also discussed it onThe Howard Stern Show, saying that he had been involved with the project even beforeAngelina Jolie— who was supposed to play Bullock’s role — was considered to star with him. He explained:
Everybody winds up doing what they are supposed to do. Sometimes someone gets in a motorcycle accident, and someone else ends up doing the part, and you say, ‘I couldn’t have imagined anyone else there’.I went to do a test with a new sort of multi-spherical camera for how they were going to do the CGI, and I’m one of those guys who can be comfortably uncomfortable pretty easily. I went in in the morning to do it, went in for about 20 minutes and said, ‘This is crazy, how much longer is this?’ They said, ‘Another four or five hours?’ I said, ‘No, it isn’t.’ You have to have boundaries. Leave before you flip out.

After Downey’s departure, Cruise was considered, as Cuarón wanted someonewith a big name in the industry.Tom Hanksand evenDenzel Washingtonwere also options. Ultimately, the director chose Clooney, since the actor was already familiar with the project and was eager to help however he could.
In the end, it’s interesting to see how Cruise and Downey found themselves in the same situation yet again, but can anyone imagineCruise as Tony Stark? Because that was the original plan.

How Robert Downey Jr. Became Iron Man Instead Of Tom Cruise
Iron Man was probably the character that left the biggest mark on the MCU and sparked a revolution. But it’s tough to imagine that happening without RDJ’s influence. Even now, it’s hard to separate Tony Stark from the actor, almost like the role was made for him.
But before all that, Cruise was actually being considered to play the superhero. This news might surprise some, while it’s old news for Marvel fans, but the reason behind the casting change isn’t often discussed.
“Tom Cruise Iron Man to fight Robert Downey Jr’s Doctor Doom”: Kevin Feige Bringing Tom Cruise into MCU After Years of Rumors Can be the Answer to Surpass Avengers: Endgame
According to the bookThe Reign of Marvel Studiosby Joanna Robinson, Dave Gonzales, and Gavin Edwards, the behind-the-scenes dynamics at the studio were revealed, and they stated that the reason for the change was purely financial.
Cruise “flirted with the idea of playing [Tony] Stark,” butKevin Feige, president of the MCU, provided an even clearer explanation: (viaComic Book Movie)
Cruise’s asking fee at the time was more than even a profitable studio like Fox was willing to risk on an untested superhero property.
At that time, Disney still didn’t own the rights to the MCU, which makes it all the more understandable. Casting an A-list actor was totally unfeasible.
As a result, the studio started looking for smaller names and ultimately decided to bet on Downey, despite all the personal issues he had been dealing with in the past. In the end, this turned out to be one of the best decisions — if not the best — in the MCU.
Gravityis available for streaming on Max.Iron Manis available for streaming on Disney+.
Catherine Delgado
Articles Published :141
A geek enthusiast of fantasy and sci-fi, Catherine is also a screenwriter, completely obsessed with pop culture. Graduated in Audiovisual Production, she creates characters and writes about fictional universes when not writing articles, binge-watching shows, or reading sagas.