When asked about the apparent height difference between Godzilla and Kong in 2018, director Adam Wingard said "They gave us a good out in Kong: Skull Island when they mentioned that Kong is still growing, but that'll be a challenge we have to deal with, and we're very aware of that issue."
Toho Company Ltd., the Japanese company that owns Godzilla and produced the original King Kong vs. Godzilla (1962), intended to produce a remake of the film in the early 1990's under the title Godzilla vs. King Kong. However, they were prevented from making the film due to legal issues, as Turner Entertainment, the copyright owners of King Kong (1933), threatened to sue Toho for using Kong's likeness.
In June 2019, Warner Bros. Studios Chairman Toby Emmerich sat down with media site Deadline for a chat about running the movie division in light of Kevin Tsujihara's dismissal. Among the many things that he talked about was Godzilla Vs Kong, which came up briefly in discussing the disappointing box-office performance and tepid critical reception of Godzilla: King of the Monsters. The CEO candidly admitted that their aim is to deliver the best possible experience for the fans with Godzilla Vs Kong, which could result in the movie being delayed to later that year. Deadline stated the delay may mean the studio orders reshoots, even though director Adam Wingard already announced a wrap on principal photography. Moving the movie from March 2020 to the summer or holiday seasons may also be a mistake because it will put the film in the middle of weekends packed with other blockbusters which is one reason why Godzilla, King of the Monsters didn't do as well as expected.
Warner Bros. Studio chairman Toby Emmerich announced in June 2019 that the GODZILLA vs, KONG release date may be pushed back. "Summer 2019 has proved less lucrative for the studio with the recent lackluster box office of Warners and Legendary tentpole Godzilla: King of the Monsters, which bowed to $49 million in its debut at the North American box office," he said. Emmerich said it might come out later in the year, so they can deliver "an A+ movie."
When Alexander Skarsgard, who plays a geologist, was asked why he decided to appear in this film, he said he initially considered it because he "had done a row of quite dark and intense characters" and wanted to try something different. Ultimately, though, it was the opportunity to work with director Adam Wingard, who he describes as smart, lovely and incredible with actors, that actually made him sign up. "When he reached out, the tone of the genre and the movie is much different to the smaller, darker movies I have done. It was a character I was really ready to play. It is a character that is very likeable."
To prepare for the film, director Adam Wingard said in an interview that he revisited a handful of Godzilla and King Kong films he grew up watching, which revived a sense of empathy he felt for the monsters as a kid. And that emotional element is exactly what he wants to bring to his mega monster crossover: "Some of those Godzilla movies I haven't seen since I was a kid so revisiting them was a lot of fun. To be able to almost go back in time and re-experience what that was like, I was able to directly empathize with that feeling when I really felt like, maybe Godzilla really is going to lose in this movie. That was really important because it helped me remember, going forward on Godzilla vs. King Kong, the kind of feelings people are going to have when they watch it. That's what I want to do, I really want you to take those characters seriously. I want you to be emotionally invested, not just in the human characters, but actually in the monsters. If I had my way, I want people to really be teary-eyed at the end of the movie, and be that invested in to what's going on."
Julian Dennison, Danai Gurira, Rebecca Hall, and Brian Tyree Henry have all worked on Marvel movies. Dennison was Firefist in Deadpool 2 (2018), Gurira was Okoye in Black Panther (2018), Avengers: Infinity War (2018), and Avengers: Endgame (2019), Rebecca Hall was Maya Hansen in Iron Man 3 (2013), and Tyree Henry was Jefferson Davis in Spider-Man: Into The Spider-Verse (2018).
In a interview with License Global, Executive Vice President Brand Development of Legendary Entertainment, Elie Dekel, talked up Legendary's excitement for their 2020 film slate and still has Godzilla vs. Kong marked for a Spring 2020 release as currently scheduled. So there doesn't seem to be a delay set in stone quite yet. Noting that, "Beyond the films themselves, the MonsterVerse was mentioned to be bolstered not only be its line of comics/graphic novels(And collector's merch), but will also be bolstered by a in-the-works future release MonsterVerse mobile-game." This is in line with previous statements from Warner Bros. Studio bosses Toby Emmerich and Peter Roth, in which they were confident of Godzilla vs. Kong and still aimed for this window but were worried about fan response.
In the original Kingu Kongu tai Gojira (1962) , it was rumored at one point that King Kong wins in the American version and that Godzilla wins in the Japanese version. However, these turned out to be false: Kong wins in both versions.