With the news that Michael Keaton will be reprising his role as Batman in the upcoming Flash movie, fans across the Internet are agog with delight. The Flash film has been lingering in development hell for some time, and the news of another cast member has reignited excitement.

Michael Keaton last played Batman in 1992, starring in Batman Returns, his second and final outing as the caped crusader. Until now.

We already know how Ezra Miller's Flash, a decidedly 2000s superhero, would become intertwined with the grunge-era Batman. Yes, it's time travel.

What to Read Next

But this movie won't be the first time the two have crossed paths... literally speaking. In fact, Flash (not Ezra Miller's, that is) once bumped elbows with Keaton's Batman in the aforementioned Batman Returns.

Okay, strictly speaking, it's more of an Easter egg than a proper scene for the characters, but if you look closely you can see a man in a Hermes helmet walking behind Bruce Wayne at a fancy masquerade party. The helmet is worn by none other than The Flash.

Now it's worth pointing out that the iteration of Flash who wears the Hermes helmet is Jay Garrick. This version debuted in issue number one of 1940's Flash Comics, an anthology series.

the flash
DC Comics

Garrick got his own series in 1941 called All-Flash. He later made a cameo appearance in Flash #123, which established him as living on Earth-Two, a parallel universe to Earth-One, where Barry Allen lives.

Barry Allen is, you guessed it, Ezra Miller's Flash. But he's also the Arrowverse version of Flash. We know, it's confusing.

As we pointed out before, the CW's Crisis on Infinite Earths DC crossover brought Ezra Miller's Flash together with the TV version played by Grant Gustin. The TV show also confirmed Keaton's Bruce Wayne as canon in the opening of the first episode.

michael keaton as batman
Warner Bros.

In doing so, the TV show proved that the Keaton films, Justice League, and Arrowverse were all connected at one point and can presumably connect again in the future.

With The Flash movie set to loosely follow the comics' Flashpoint storyline, we'll likely see Barry time travel to stop the murder of his parents. This creates a new timeline, which results in Batman becoming a sort of mentor figure (like DC's version of Nick Fury) in The Flash movie.

grant gustin meets ezra miller’s the flash, crisis on infinite earths
The CW

Miller's version of Barry Allen appeared briefly in Batman V Superman: Dawn of Justice, and then more prominently in Justice League. The team-up movie was meant to lead directly into three solo films: The Flash, Aquaman and Shazam!.

As of 2020, we've only seen Aquaman and Shazam! on the big screen. But The Flash producer Barbara Muschietti assured fans the solo Flash film was on its way and a script is in the works from Birds of Prey writer Christina Hodson.

The Batman has a release date of October 1, 2021. The Flash airs on Tuesdays at 8/7c on The CW in the US. Sky One and NOW TV air the show in the UK.

The Batman [Home Premiere Rental]
Warner Bros/DC The Batman [Home Premiere Rental]
Credit: DC
LEGO Technic The Batman Batmobile (LEGO 42127)
LEGO Technic The Batman Batmobile (LEGO 42127)
Now 11% Off
Credit: LEGO/DC
Zack Snyder's Justice League [DVD] [2021]
Warner Bros/DC Zack Snyder's Justice League [DVD] [2021]
Credit: DC
The Art of The Batman by James Field
Abrams The Art of The Batman by James Field
Now 29% Off
Credit: Abrams
Joker (2019)
Warner Bros/DC Joker (2019)
Credit: DC Entertainment
Batman unmasked Bruce Wayne Funko Pop! figure (Pop in a Box Exclusive)
Funko/DC Comics Batman unmasked Bruce Wayne Funko Pop! figure (Pop in a Box Exclusive)
Credit: Funko
Justice League
Warner Bros/DC Entertainment Justice League
Credit: DC Entertainment
Batman v Superman: Dawn of Justice
Warner Bros/DC Entertainment Batman v Superman: Dawn of Justice
Credit: DC Entertainment
The LEGO Batman Movie
Warner Bros/DC Entertainment The LEGO Batman Movie
Credit: DC Entertainment
Absolute Batman: The Killing Joke (30th Anniversary Edition)
DC Comics Absolute Batman: The Killing Joke (30th Anniversary Edition)
Now 21% Off
Batman: The Animated Series [Blu-ray]
DC Comics/Warner Bros Animation Batman: The Animated Series [Blu-ray]
Credit: Warner Bros Animation
Funko Pop! Ride - Selina Kyle on motorcycle
Funko/DC Comics Funko Pop! Ride - Selina Kyle on motorcycle
Credit: Funko
The Batman comics box set
DC Comics The Batman comics box set
Now 22% Off
Batman 4-film collection (1989-1997)
Warner Bros/DC Entertainment Batman 4-film collection (1989-1997)
Now 51% Off
Credit: DC Entertainment
Batman - The Dark Knight Trilogy boxset
Warner Home Video Batman - The Dark Knight Trilogy boxset
Batman: Return to Arkham (PS4)
Warner Bros. Interactive Entertainment Batman: Return to Arkham (PS4)
Credit: DC Comics/Rocksteady/Virtuos
Batman - The Complete TV Series
Warner Home Video/DC Comics Batman - The Complete TV Series
Credit: DC Comics
Batman - The Movie [1966] [DVD]
20th Century Fox/DC Comics Batman - The Movie [1966] [DVD]
Credit: DC Comics
Batman: The Dark Knight Returns - 30th Anniversary Edition
DC Comics Batman: The Dark Knight Returns - 30th Anniversary Edition
Now 62% Off

Digital Spy now has a newsletter – sign up to get it sent straight to your inbox.

Looking for more TV recommendations and discussion? Head over to our Facebook Group to see new picks every day, and chat with other readers about what they're watching right now.

Headshot of Gabriella Geisinger

Gabriella Geisinger is a freelance film critic and journalist, with a focus on J-drama & film, and the Japanese production industry. She was previously Locations Editor at Screen International and Deputy Movies Editor at Digital Spy. Her writing can also befound in Curzon, 1883, and more. A born and raised New Yorker, she loves coffee and the colour black, obviously.