The first trailer for the movie features Claude Debussy's "Clair de lune."
Charles Dance saying "Long live the King."
Gareth Edwards was originally set to direct the film, but he later dropped out on May 13, 2016.
Originally Godzilla: King of the Monsters was going to be released on the same day, June 8, 2018 as Bumblebee (2018). Now, the release date has been pushed farther for March 22, 2019 and later delayed once more to May 31, 2019 following Avengers 4 (2019), Aladdin (2019), Pokémon: Detective Pikachu (2019), and John Wick 3: Parabellum (2019).
Creator's Favorite: While Director Michael Dougherty didn't outright say Rodan was his favorite, he has stated that he has a major soft spot for Rodan and prays he did "justice" for the character.
This is the first American production of Godzilla to receive a sequel.
The third installment of Warner Bros. Pictures' media and shared fictional universe, the MonsterVerse, that is centered on a series of monster films featuring Godzilla and King Kong.
The Director posted an image of the Oxygen Destroyer on Twitter during the days of filming. The OD was used in the first Godzilla film (1954), to defeat Godzilla. In the 90's Heisei series, which are all films that tie into the original 54 movie and its reboot of the franchise Godzilla 1984, Godzilla Vs Destroyah (94) was released. The monster Destroyah was a creation that spawned as a direct result of the OD being used in the original 54 film. The Director of Godzilla King of the Monsters, has stated that, "...the Oxygen Destroyer is relevant to the movie, and is not a simple cameo, their are also several other weapons and things being created...". This could be a set up to bring in Destoryah for the next movie in the series, Godzilla Vs. Kong due out in 2020.
Stranger Things (2016) star Millie Bobby Brown joined the cast in January 2017.
This film marks the reunion of Ken Watanabe and Ziyi Zhang, following their previous collaboration on Memoirs of a Geisha (2005).
O'Shea Jackson Jr. is the third actor from Straight Outta Compton (2015) to appear in the MonsterVerse film after Corey Hawkins and Jason Mitchell in Kong: Skull Island (2017).
Max Borenstein said in an interview that the sequel will be "bigger and better" than the last film.
The five-year period between the release date of Godzilla (2014) and this film is the second longest gap between the release of the first and second films in a new series of Godzilla films, after the five-year gap between the releases of the Return of Godzilla (1984) and Godzilla vs. Biollante (1989) to start the Heisei Series.
On July 21, 2018, Dougherty revealed that Bear McCreary will compose the film's score, incorporating themes from Akira Ifukube's previous Godzilla scores. Regarding his involvement, McCreary stated, "I am thrilled to be the composer for Godzilla: King of the Monsters, and honored beyond words to have the opportunity to contribute to one of cinema's longest-running musical legacies." The first trailer featured a rearrangement of Claude Debussy's Clair de Lune by Michael Afanasyev for Imagine Music. McCreary further expanded on his plans and involvement, stating, "I've known Michael Dougherty for a long time, as we both run in the same film-nerd circles. I have always appreciated his love of film music, chatting with him for hours on end over the years about the scores we both love. I was thrilled for him when he landed the gig to direct Godzilla, because I knew what it meant to him. When he later asked me to join the project, I was overwhelmed with excitement, and awe, grateful for the chance to join him in contributing to the legacy of our favorite monster. We knew from the beginning that we wanted to incorporate classic (Akira) Ifukube themes, and yet I think fans will be excited to hear how they have evolved. There are some fun surprises in store. Fitting the material and Michael's visionary film, this score is the most massive I have ever written, and I can't wait for fans to experience it!" In November 2018, a sample of McCreary's Godzilla theme was leaked online after it was used during a panel at Tokyo Comic Con.
Sally Hawkins's third creature film after Godzilla (2014) and The Shape of Water (2017).