‘Supergirl’ lifts off with $7.8M in box office previews, starring Milly Alcock

Warner Bros.’ upcoming DC superhero film “Supergirl” opened with $7.8 million in box office previews, according to The Hollywood Reporter, indicating early audience interest ahead of its wider theatrical rollout.

The movie stars Milly Alcock as the titular character and is directed by Craig Gillespie, with Warner Bros. as the studio backing the release. The preview total is the first widely cited domestic box office snapshot for the film in its pre-opening window.

Preview numbers are often used by studios and exhibitors to gauge whether a title is likely to sustain ticket demand after marketing ramps up and theaters broaden showtimes. They can also affect how quickly additional screens are allocated, particularly for films launching alongside other major releases.

For “Supergirl,” the early figure places the studio in the typical pre-opening decision cycle of balancing advertising spend and theater inventory, while monitoring day-to-day attendance trends, audience retention, and word-of-mouth indicates from early showings.

From a production standpoint, the casting of Alcock in the lead role and Gillespie’s direction frame the film as a new iteration of a classic comic-book character for contemporary movie audiences, with the studio positioning it as a marquee theatrical event.

No additional preview breakdowns, such as theater count, per-theater averages, or comparisons to prior DC releases, were included in the report summary used for this coverage, limiting the ability to assess whether the $7.8 million figure came from a narrow rollout or a broader launch footprint.

The next checkpoint will come after the film’s official opening weekend results, when totals across all participating theaters are compiled and exhibitors and the studio can compare early preview momentum to performance in the full release window.