Rooney and Kate Mara Finally Share the Screen in Werner Herzog's 'Bucking Fastard'

VENICE — Rooney Mara and Kate Mara have appeared together on screen for the first time in Bucking Fastard, Werner Herzog's new competition film at the Venice Film Festival. The real-life sisters play Jean and Joan Holbrooke, fictional twins whose intense bond shapes a story about isolation, work and survival. The film premiered September 3, turning a long-discussed family collaboration into one of the festival's most distinctive casting events.

Herzog has said the initial spark came from Greta and Freda Chaplin, identical twins he encountered decades ago, but he emphasizes that the movie's plot is invented. That distinction matters because Bucking Fastard is not presented as a factual biography of the Chaplin sisters. It uses the idea of inseparable twins as the starting point for a fable built in Herzog's own dramatic world.

The Mara sisters' performances depend on unusual coordination. Their characters often speak in unison, a device that could become a novelty if handled only as a technical trick. In the film's conception, it expresses a shared identity that makes other people unsure where one sister ends and the other begins. The effect asks the actors to match rhythm and intention while preserving enough individuality for the audience to sense two lives inside one outward pattern.

Rooney Mara and Kate Mara have built separate careers despite their family connection. Rooney's work includes Carol, The Girl with the Dragon Tattoo and Women Talking, while Kate has moved between film and television projects including House of Cards and A Teacher. Bringing them together creates immediate curiosity, but their established independence also protects the film from feeling like a stunt arranged solely around a famous surname.

The cast includes Orlando Bloom and Domhnall Gleeson, expanding the story beyond the twins' enclosed relationship. Herzog's films often place singular personalities against institutions, landscapes or physical tasks that expose their private logic. Bucking Fastard appears to continue that interest through women whose devotion to one another can look like strength, defiance or confinement depending on who is watching.

The title itself announces the director's appetite for provocation. It is abrasive, memorable and slightly comic, qualities that have long existed beside the seriousness of Herzog's images. That mix can divide audiences. A strange title may promise freedom from conventional drama, but the film still has to earn its eccentricity through character and consequence rather than rely on the director's reputation for the extraordinary.

Venice is a natural setting for the premiere because Herzog's history with the festival stretches across decades and forms. He has worked in fiction, documentary and performance, often blurring the emotional expectations attached to each. A competition slot places the film under close scrutiny while giving the Mara sisters' collaboration an international platform before wider distribution details determine when broader audiences can see it.

Early responses have focused on the central performances and on whether the fable sustains its unusual tone. Festival reactions are useful but incomplete. Critics see films in compressed schedules, and the first wave of coverage can emphasize novelty over quieter choices. Bucking Fastard may change as audiences encounter it outside the event, particularly if viewers arrive for the sisters and discover a film less conventional than the casting headline suggests.

The collaboration also avoids an easy version of sisterhood. Public fascination with famous relatives often turns difference into rivalry or treats resemblance as destiny. By playing twins whose connection is almost too complete, Rooney and Kate Mara enter that fascination while exaggerating it into fiction. Their real relationship provides trust and familiarity, but the characters' dependence is a performance, not a transparent window into the actors' private lives.

Herzog's statement that the narrative is invented should guide coverage as the film travels. The real Chaplin twins have a documented and complicated history, and collapsing their lives into promotional shorthand would misrepresent both them and the movie. Bucking Fastard can be discussed as inspired by an encounter without presenting every scene as something that happened. That boundary is especially important when fictional drama borrows recognizable elements from real people.

The Venice premiere gives Bucking Fastard a compelling first image: two accomplished sisters finally sharing a frame under the direction of a filmmaker drawn to extreme bonds. The lasting question is whether the movie transforms that image into fully realized characters. For Rooney and Kate Mara, the project is already a career first. For audiences, its value will depend on what the sisters create together after the novelty of seeing them side by side has passed.