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How 50 twins brought Doppelmode to life 
A group of teenagers gathered around a long wooden table in a wood-paneled library with green banker's lamps, all looking intently in the same direction with

September 10, 2026

Imagine walking into your college library one afternoon and thinking reality had glitched. Everywhere you looked, there were twins—50, to be exact.

The twins weren’t there for a reunion. They were filming Doppelmode, Microsoft’s acclaimed back-to-school ad for Windows 11. A London university library transformed into a bustling study hall provided a fitting backdrop for the spot by Droga5 and ProdCo.

The film imagines what happens when students’ two worlds—study and play—collide. One races to finish a presentation. The other grabs a game controller. What begins as a tug-of-war between work and play gradually settles into a rhythm, with both sides learning to share the same machine.

“It’s pure choreography. There’s no CG in this film. It’s 100 percent real,” says Sheppard. “The textures and quirks you get from shooting practically bring an intimacy and immediacy to the students’ hectic lives.”

Unable to tell their fellow actors apart, the Shah sisters joked that they felt like frauds.
Split image showing two laptop users: on the left, a person holds a blue and orange Xbox controller while playing a dark action game; on the right, a person types
Every visible display was custom built for the shoot. Even the laptop screens tell stories of twinning.
Right now, we have 25 sets of identical twins at this library, the highest density of twins anywhere at this moment in London.
Mark Connell
Production Designer, ProdCo 
A wide-eyed librarian wearing glasses and a blazer holds an open copy of "The Double" by Fyodor Dostoevsky in a busy wood-paneled library reading room filled with
The entire space was layered with thematic cues like The Double by Dostoevsky—exploring identity and duality.

Playing in study hall

The library with its soaring reading rooms and stacks formed the backdrop of film’s central idea for Back to School.

Floor-to-ceiling windows, classical busts, and iconic banker’s lamps with specialist bulbs created an intimate study to play. The setting was a big factor to lean into old-school ambiance, “but in a contemporary fashion,” adds Connell.

Look closely and you’ll spot thematic nods: students editing videos of twin dachshunds or reading The Picture of Dorian Gray, a classic exploration of dual identities.

Finding the flow

Working with movement coordinator Charlie Mayhew, the production carefully designed each handoff, interruption, and near collision so every pair of twins felt connected yet individual. The soundtrack—”Play Me” by Fcukers—provides the same push and pull that defines the students’ balancing act.

Cinematographer Oliver Millar mirrored that evolution on camera. Early shots feel composed and controlled. As the film progresses, the camera relaxes—making the surreal world feel surprisingly natural.

Because we had real performers, we captured split-second reactions, accidental sync, little moments of chemistry you can’t really animate into existence.
Mackenzie Sheppard
Director, ProdCo
Film or TV production crew shooting a scene inside a wood-paneled library, with cameras, monitors, and equipment visible while actors are positioned at a study

The best part of school

For many of the twins cast, the most memorable part was suddenly finding themselves surrounded by dozens of people who understood exactly what it feels like to share the world with someone who looks just like you.

“We feel like we’re in a simulation seeing all the twins together,” one of the Shah twins laughed while trying—and failing—to remember everyone’s names.

Yet the biggest surprise wasn’t that Doppelmode made two worlds coexist on one screen. It was watching 25 pairs of twins create one unforgettable community.