Supergirl’s DCU Movie Just Confirmed a Major Character

Well, there it is: Supergirl is bringing in Superman. Not exactly shocking, but we finally have it from the source.

So yes, Superman is in 'Supergirl'

During a press conference for the movie, Milly Alcock was asked about the hardest scene she shot as Kara Zor-El. Her answer gave the game away: it was with David Corenswet as Superman. She added that she wasn’t in the suit for it, it was freezing on set (about 2 degrees, she didn’t specify Celsius or Fahrenheit), and the entire thing was performed in another language. Specifically: Kryptonian. She also noted Corenswet jumped straight into the deep end on that day.

'The whole scene was in Kryptonian.'

What that confirms

• David Corenswet’s Superman appears in the Supergirl movie in at least one scene with Milly Alcock.
• Their scene is fully in Kryptonian, which is a serious flex for a big studio superhero film.
• Alcock wasn’t in costume for that sequence, so it’s likely not your standard cape-and-cape team-up moment.
• Conditions were rough: she called it a hard day, with temps around 2 degrees.
• This tracks with how DC is threading these projects together; Alcock already popped up at the end of Corenswet’s 'Superman,' and this looks like a continuation of that thread.
• How many other DCU faces cameo in 'Supergirl'? Still unknown.

What is 'Supergirl: Woman of Tomorrow'?

The film adapts Tom King’s 2021-2022 comic run, illustrated by Bilquis Evely. Milly Alcock is starring as Kara Zor-El, with a script by Ana Nogueira. DC Studios co-CEOs James Gunn and Peter Safran are producing.

Gunn’s been clear about the angle here: this Kara is not the sunnier version people might expect. Where Superman was sent to Earth as a baby and raised by loving parents, Kara grew up on a shard of Krypton, watched people die around her for 14 years, and only came to Earth as a teenager. The idea is that she’s tougher, more scarred, and, frankly, more intense than the usual Supergirl.

Where this leaves the DCU story

Between that end-of-'Superman' appearance and Alcock’s new confirmation, it sounds like the cousins will share some meaningful screen time in 'Supergirl.' What they’re actually doing in that Kryptonian-only scene is still under wraps. But for DCU watchers, this is the connective-tissue stuff that matters: character dynamics, language world-building, and a tone that signals Kara’s story won’t just be a lighter Superman remix.