Should You Watch ‘Superman’ Before ‘Supergirl’? Here’s the Honest Answer

If you’ve been eyeing a seat in the theater for ‘Supergirl‘ and wondering how much homework you need to do first, you’re not alone. The question of whether James Gunn’s DCU requires strict sequential viewing is one of the most searched topics surrounding the new release, and the answer is more nuanced than a simple yes or no.

The short version is this: watching ‘Superman‘ before ‘Supergirl’ is not a hard requirement, but it will meaningfully enrich the experience. The second live-action movie in James Gunn’s DCU stars Milly Alcock as Kara Zor-El, who reluctantly joins forces with Jason Momoa’s Lobo on an interstellar journey to seek justice against those who destroyed her home planet. That premise stands entirely on its own. What ‘Superman’ adds, however, is texture.

The Superman and Supergirl Connection You Should Know About

‘Superman’ gives viewers a chance to get to know Krypto before ‘Supergirl’, going back to when the dog was first given to Kara and offering a deeper look at his relationship with his more chaotic owner. That bond between Kara and the superpowered pup is not just a fun detail. The Supergirl story goes even further than the source comic with scenes of them together in the present and in flashbacks, making the pup her closest companion and wherever he is, that’s where home is.

In an interview with Entertainment Weekly, Gunn explained that having Supergirl appear at the end of ‘Superman’ was important because it showed that Superman had risked his life to save a dog that was not even his own, that he was dog-sitting for someone else and the dog was a pain in his neck the whole time.

That one late-film cameo reframes the entire emotional dynamic between the two Kryptonian cousins before Kara ever gets her own story.

The brash, messy version of Kara seen in that cameo is a reflection of everything she has suffered and her attempts at dealing with it, and ‘Supergirl’ adds much greater context to that brief moment. Without it, her opening scenes may feel a little jarring for newcomers, though not incomprehensible.

Kara Zor-El’s DCU Debut Explained

Towards the end of ‘Superman’, a very drunk Kara shows up at the Fortress of Solitude to pick up Krypto, revealing that the dog audiences had watched Clark wrestle with all film was actually hers. It is a small moment in the larger context of that movie, but it functions as the single most important piece of connective tissue between the two films.

Alcock was last seen as Kara Zor-El in ‘Superman’, making a fan-favorite appearance toward the end of the film. Clark had been dog-sitting while Kara was off finding planets with red suns so she could get drunk. That detail becomes the literal setup for ‘Supergirl’, which opens with Kara doing exactly that on a far-off world before the story kicks into gear.

Superman appears in ‘Supergirl’ in several ways including a video message at the start, during a phone call, in a flashback that shows Kara arriving on Earth, and in the movie’s final scene. His presence throughout the film rewards viewers who arrived with prior context, while still functioning as exposition for anyone coming in fresh.

James Gunn’s DCU Watch Order and Chapter One

When James Gunn and Peter Safran took over DC Studios, they completely wiped the slate clean, starting fresh with new actors and storylines, meaning you really don’t have to have seen any DC project before ‘Superman’. That clean break was intentional and it is one of the key reasons the new DCU feels more accessible than its predecessor.

‘Superman’ marked the official soft reboot of the DC Extended Universe into the DC Universe, setting up a world that connects to ‘Supergirl’, the upcoming ‘Clayface’ film, the ‘Man of Tomorrow’ team-up, John Cena’s ‘Peacemaker’, and the ‘Lanterns’ HBO series.

Understanding that architecture helps viewers appreciate that each film is designed to function both independently and as part of a larger tapestry.

‘Supergirl’ is the second film in the DCU’s Chapter One: Gods and Monsters, arriving just under a year after ‘Superman’, and runs one hour and forty-eight minutes rated PG-13. As a second chapter, it assumes a degree of familiarity with the world but does not demand it.

What Watching ‘Superman’ First Actually Adds

While it is helpful to have seen ‘Superman’ before going into ‘Supergirl’, judging by the trailers there does not seem to be a lot of direct crossover between the two films, and Supergirl’s character is deliberately different from her cousin’s. The tone shift alone is significant enough that many critics have noted the two films feel almost like entries in different genres.

As space adventures go, ‘Supergirl’ is packed with profanity, slow-motion brawling, oddly coloured aliens, and general bad behaviour, with Kara even carrying a trusty Walkman throughout. This is not the bright, optimistic Metropolis of ‘Superman’. It is a grittier, wilder ride, and that contrast lands hardest when you have the first film as a reference point.

In the final scene of ‘Supergirl’, Kara is back in Metropolis with Krypto and tells Clark she is staying, to which he responds that he could use her help, setting up future team-ups between the Kryptonian cousins. That ending hits differently when you know who these two people are to each other.

What Comes Next for Kara in the DCU

The good news for anyone falling for Alcock’s version of Kara is that this is far from her last appearance. Milly Alcock has already signed on for her next movie in the DCU, starring in the ‘Superman’ sequel ‘Man of Tomorrow’ opposite David Corenswet’s Superman and Nicholas Hoult’s Lex Luthor, with DC Studios co-CEO Peter Safran confirming she is a major part of what they are doing in that film.

Executive producer Lars P. Winther confirmed to The Hollywood Reporter that Kara has moved on from her wild lifestyle by the time of ‘Man of Tomorrow’ and will spend more time on Earth, saying she is done with her wild ways and is going to try to get back in with her cousin and be more grounded. It is a satisfying arc that ‘Supergirl’ lays the groundwork for, and one that will likely feel more earned for viewers who watched it all unfold from the beginning.

So if you have the time before your screening, queue up ‘Superman’ on Max. You won’t be lost without it, but you’ll be glad you did. Whether you’re Team Clark or firmly in Kara’s corner by the end of ‘Supergirl’, drop your take in the comments because this cousin rivalry is clearly just getting started.