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'I Love That': Jon Favreau Revealed One Fun Scene In Which Robert Downey Jr. And Gwyneth Paltrow's Real-Life Banter Made It Into Iron Man

 Jon Favreau, Robert Downey jr., and Gwyneth Paltrow in the MCU.
Jon Favreau, Robert Downey jr., and Gwyneth Paltrow in the MCU.

Before Robert Downey Jr. became the face of the Marvel Cinematic Universe, propelling it to unprecedented success, his casting faced skepticism from many who didn't see him as a reliable choice for major roles. However, director Jon Favreau was convinced of RDJ's undeniable charisma and pushed for him to be cast as Tony Stark. Favreau's intuition paid off: Downey Jr. revitalized his career and recently celebrated his first Oscar win for his performance in Christopher Nolan's Oppenheimer. The visionary behind Chef recently shared insights into a scene where the natural banter between Downey Jr. and Gwyneth Paltrow beautifully transitioned from off-screen to on-screen, marking a memorable moment in the MCU's debut film.

A significant part of Iron Man's charm comes from the dynamic between Downey Jr. and Gwyneth Paltrow. In an interview with People, Jon Favreau discussed how the chemistry between the two actors enhanced one of the movie's most memorable scenes, shedding light on the creative process that made Iron Man such a groundbreaking film. The director recounted the astute way he handled that moment, saying:

I was a very good student where I would take notes as they would talk, and whether it was improvising or even just talking about the scene, I would write stuff down that they would say.

A notable instance was the Shakespeare in Love star's impromptu correction during a script reading, as she pointed out an art-related inaccuracy. Her director recounted:

Gwyneth corrected him once because we were reading the script, and it said, ‘This looks like Jackson Pollock's spring period.’ And then she corrected us in rehearsal… She says, ‘No, it's actually The Springs period. The Springs is the part of the Hamptons where Jackson Pollock lived and worked, not spring, not the season.’

The director and actor could have gotten uptight or defensive by the correction, but neither did; instead, he took note, and Robert Downey Jr. played along, giving the script some realism. The Swingers writer continued:

So I wrote down every word, and she's correcting him in the movie when he says, ‘the spring period.’ So it just adds to their sort of nippy banter. I find it thoroughly compelling and entertaining to watch the two of them on screen together because they had this banter that has an edge to it.

The rest, as they say, is cinematic history. The on-screen dynamic between the two A-listers is so compelling it could stand toe-to-toe with the most iconic romantic comedy duos. The Iron Man 2 helmer also seems to share this sentiment, further noting:

They complement each other so well. They're so different, but yet [have] so much mutual respect and admiration. I love that.

The actors behind Pepper Potts and Tony Stark continue to enjoy a playful friendship off-screen. And, as is the case with their director, it's hard not to "love" the real-life differences between the actors that helped that along. The two are also still close today. More recently, even as Gwyneth Paltrow was getting her hair styled during Robert Downey Jr.’s 2024 Oscar win, she didn't miss out on the celebration. Paltrow shared a hilarious on-brand video in honor of his victory.

As for Jon Favreau, he expressed his joy over the Stark actor's recent accolades, particularly for his role as the cunning Lewis Strauss in Oppenheimer. “It’s nice that the sun is shining on him because it takes turns,” the director shared. It's sweet to see the filmmaker share so much love for his actors and continue to highlight just how crucial their chemistry was to the success of Iron Man.

If you have a Peacock subscription, you can watch the Avengers star's Oscar-winning performance in Oppenheimer. Meanwhile, Marvel enthusiasts can also relive the memorable on-screen partnership between Robert Downey Jr. and Gwyneth Paltrow in the MCU by watching the Marvel movies in order with a Disney+ subscription.