Barry Allen meets haggard Batman (Michael Keaton) in new clip from The Flash

Very soon, we’ll be watching The Flash, the long-in-coming solo film for Barry Allen, played by human crime scene Ezra Miller. The movie has taken a lot of twists and turns ahead of release, but it’s finally here.

And the reviews so far are pretty good, if not overwhelmingly effusive. “This is one of the best superhero movies of the 21st century so far. Just sit back and enjoy the flashes of greatness,” backhands The London Evening Standard. “It’s sometimes buried under layers and layers of storytelling knots that the film never fully untangles, but the fun is there, and when the film is really working, that turns out to be enough,” shrugs The A.V. Club. “Worth the hype, though trying to do so much also leads to a head-scratching kitchen-sink climax,” twiddles USA Today.

A lot of the reviews are like that: it’s good, but not that good; it is a DC movie, after all. But the Rotten Tomatoes score is a solid 72% as of this writing, so DC fans can hopefully count it as a win if not a triumph.

Critics think The Flash is the best DC movie yet (even if it’s not great)

So if you’re up for looking forward to this movie, here’s a new clip for you to enjoy: two versions of the Flash track down a Batman living in another universe. This Batman is played by Michael Keaton, who played the role in a pair of movies directed by Tim Burton in the late ’80s and early ’90s. This Batman has been out of the game for a while, but decides to give it another go when Barry lays out the situation:

Like every other superhero movie coming out these days, The Flash is about the multiverse. Barry goes to the past to change some traumatic events from his childhood, and ends up messing things up in his present timeline. So he and his crew hop universes to recruit allies and bring things back to normal. That’s how we come across multiple Flashes, Supergirl (Sasha Calle), multiple Batmen, and a version of Superman played by Nicolas Cage.

Ready or not, The Flash comes out in theaters on June 16.

Michael Keaton improvised memorably nutso line from Batman

Circling back to Keaton, he made his debut as the Caped Crusader in Batman in 1989. A lot of things from that movie have traveled down to the present time, including more or less everything Jack Nicholson says as the Joker and this scene, where Bruce Wayne grabs a fireplace poker and swings it in the Joker’s face. “You wanna get nuts?” he asks. “Let’s get nuts!”

Unsurprisingly, this line was improvised on set, as Keaton revealed to a crowd at a screening. “I don’t think ‘Let’s get nuts’ was in the script, that was me,” he said, per Empire. “That scene was never really that good as written, to be honest with you. That was one of the days when we went round and round. I think Kim [Basinger] is in it, me and Jack [Nicholson], nobody could ever find it. I thought, ‘Okay, pressure’s on, man. Pressure. Is. On.’ I thought he’d probably said, ‘Okay, I’m kind of cornered, I only have one way to go and I’d better let this character know that we’re gonna throw down.’”

I mean, people still quote that line to this day, so if the point of the ad lib was to make the scene memorable, mission accomplished.

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