while The Hollywood Reporter reported that Henry Cavill and Jason Mamoa were set to make cameo appearances as Superman and Aquaman, respectively, and that Cavill had filmed his role in September. The studio was reportedly debating on retaining the cameos depending on their future plans for the characters, with plans for the film not yet finalized as it had yet to enter picture lock. Cavill's cameo, along with one Gal Gadot had filmed as Wonder Woman, were soon reported to have been cut, after DC Studios chose not to move forward with sequels to Man of Steel and Wonder Woman 1984 (2020). Cavill was paid $250,000 for his cameo in The Flash. Music Benjamin Wallfisch was set to compose the film's score by April 2021 after previously working with Muschietti on It and It Chapter Two. Wallfisch also previously wrote the score for DC's Shazam! (2019). By late August 2022, Wallfish was set to begin a scoring session at Abbey Road Studios in London. Marketing Miller debuted the first footage from the film at the virtual DC FanDome event in October 2021. They said there was not enough footage available to make a full trailer or teaser, but William Hughes at The A.V. Club felt the footage could comfortably be categorized as a teaser. He said being able to see it was proof of the film actually being made after its long and troubled production history. Polygon Matt Patches and io9 James Whitbrook both highlighted the footage as the beginning of the DC multiverse on film, with its hints at Keaton's version of Batman and the reveal that Miller would portray multiple versions of Barry Allen. In February 2022, more footage was released as part of a teaser for Warner Bros.' 2022 slate of DC films, which also included The Batman, Black Adam, and Aquaman and the Lost Kingdom (before The Flash and Aquaman and the Lost Kingdom were delayed to 2023). A new trailer was shown at Warner Bros.' CinemaCon panel in April 2022, and was noted by attendees for Keaton's Batman reusing the line "You wanna get nuts? Let's get nuts" from Batman. DC Comics published a three-issue prequel comic book limited series titled The Flash: The Fastest Man Alive, written by Kenny Porter with art by Ricardo López Ortiz, Juan Ferreyra, and Jason Howard. The first issue was released on September 13, 2022, and features a variant