Supergirl Box Office Forecast Falls Ahead of June 26 Release

Warner Bros. and DC Studios’ upcoming superhero film “Supergirl” is facing weaker box office expectations just days before its theatrical debut, with new tracking figures suggesting a domestic opening weekend of approximately $51 million when it arrives in theaters on June 26.

The latest projection marks another decline from earlier estimates. A report published by Deadline on June 4 had forecast a $55 million opening, but updated tracking data cited by Puck News co-founder Matthew Belloni indicates that the figure has slipped further. Belloni reported that National Research Group tracking now places the film’s three-day domestic debut at $51 million.

The forecast stands in sharp contrast to the performance of 2025’s “Superman,” which launched the new DC Universe under James Gunn and Peter Safran. The film opened to $125 million domestically during its first weekend and eventually earned $354.2 million in North America and $264 million overseas, reaching a worldwide total of $618.7 million. According to Variety, “Superman” carried a production budget of $225 million, along with an estimated $125 million marketing campaign.

“Supergirl,” starring Milly Alcock as Kara Zor-El, reportedly cost around $175 million to produce before marketing expenses. Deadline previously reported a budget of $200 million in December, though Gunn publicly disputed that figure, stating on Threads that it was “not even a little bit true.”

Directed by Craig Gillespie, known for “I, Tonya” and “Pam & Tommy,” the film follows Supergirl on a revenge-driven journey set largely in space. The cast includes Jason Momoa as Lobo, Matthias Schoenaerts as Krem of the Yellow Hills, Eve Ridley as Ruthye Marye Knoll, and David Corenswet reprising his role as Superman. David Krumholtz and Emily Beecham portray Kara’s parents, Zor-El and Alura Zor-El.

The film also faces a challenging release schedule. Disney and Pixar’s “Toy Story 5” opened to an estimated $160 million domestically and is expected to remain a major box office force during its second weekend. Even with a significant decline, the animated sequel could still outperform “Supergirl’s” projected debut.

Competition is set to intensify further when “Minions and Monsters” arrives on July 1, ahead of the Fourth of July holiday period. Early projections from Box Office Pro estimate the latest installment in the “Despicable Me” franchise could generate between $95 million and $115 million during its extended opening frame, including $75 million to $85 million from Friday through Sunday alone.

Rated PG-13, “Supergirl” begins preview screenings on Thursday before opening nationwide on Friday.