Kate and Rooney Mara Master Sister Synchronicity in Venice

In the Mara sisters’ upcoming drama, Bucking Fastard, they play two siblings so deeply connected that they speak in unison. Naturally, while promoting the movie at the 2026 Venice Film Festival, Kate and Rooney delivered sartorial synchronicity on the red carpet.

At the Bucking Fastard premiere on Thursday, Rooney and Kate Mara showed off their approach to well-coordinated sister dressing, sticking to their individual signatures while nodding to one another through styling subtleties. Rooney opted for a classic column dress with a textural twist—featuring a bulbous bubble hem full of intricate rushing. Kate amped up the glam in a sequin-covered black and white Armani Privé gown with a geometric neckline and an oversized pearl detail.

This satisfying two-toned story was a continuation of their looks at the photocall earlier in the day. Always preferring a solid colorway, Rooney opted for a pristine white flowy set from Stella McCartney’s spring 2026 collection. Featuring a halterneck that flowed out and an asymmetrical high-low skirt, its billowing silhouette brought drama to the simple palette. Her older sister went a different route in Alexander McQueen fall 2026—leaning into intricate adornment with a lace-embroidered minidress with sheer layers, two-toned embroidery, a shimmering bodice, and a cutout-filled turtleneck.

Even their slicked-back hairstyles showed their distinct approaches to the red carpet—with Rooney wearing a classic low ponytail and Kate sporting three small braids. Kate’s mini was decidedly more edgy than Rooney’s white frock—but together, they balanced each other out. With their opulent draping and similar white sandals, the pair appeared to be on the same aesthetic wavelength. For their upcoming roles, this kind of cohesion is required.

Bucking Fastard, directed by Werner Herzog, finds Kate and Rooney Mara playing sisters who not only speak at the same time, but love the same man, and have the same dreams. On the Venice Film Festival red carpet, the actors have been playing up this closeness through clothing. On September 2, they were spotted in matching slinky dresses and headscarves that exuded telepathic coordination—with Rooney in a long black column and Kate wearing a white mini. With each glamorous black-and-white look, they’ve mastered the unspoken intimacy of a sibling-to-sibling connection. Just don’t ask them to wear color.