Keira Knightley stars in The Woman in Cabin 10, but something else steals the show — the Aurora Borealis, the superyacht where the movie unfolds.

The new Netflix film is a murder mystery set on the high seas, with Knightley playing Laura “Lo” Blacklock, a travel journalist who, while aboard a luxurious cruise, witnesses someone being thrown overboard. The drama deepens when Lo is told all passengers and crew are accounted for, and that the crime never happened.

After Lo becomes determined to find answers about what she saw, she navigates around the opulent vessel, endangering her life in the process. While the characters in the thriller appeared to be surrounded by splendor, the cast later revealed that they had a different experience on the superyacht Savannah.

So, where was The Woman in Cabin 10 filmed? Here’s everything to know about the real-life locations.

The Woman in Cabin 10 was primarily filmed on a superyacht

The movie was filmed on a $150 million superyacht known as the Savannah, “the world’s first true hybrid superyacht,” per Luxury Launches.

According to the Dorset Echo, the Savannah was docked at Portland Harbour during production, next to the Isle of Portland in Dorset, England.

Filming on the Savannah lasted nearly three weeks, with some interior scenes later recreated on soundstages, according to Town & Country — but most scenes set on the ship were actually filmed on board.

“Everything you see that has the boat interacting with water is real,” director Simon Stone told the outlet. “Water is not conducive to being faked on screen, so wherever you see water, it’s real.”

The yacht is 274-feet-long and cost $1 million per week

The yacht from The Woman in Cabin 10 is 274 feet long and costs $1 million per week to rent, according to Luxury Launches. It has six cabins that can accommodate up to 12 guests.

Described as a “floating palace,” the ship features impressive interiors including video walls, a spiral staircase, a sundeck, a DJ booth and a 30-foot-long swimming pool. There is also an underwater lounge, spa and “a secret room to enjoy the sea in solitude,” per the outlet.

According to Boat International, the Savannah was “built in Netherlands by Feadship and delivered in 2015.” It went on to win the Motor Yacht of the Year at the 2015 World Superyacht Awards.

The yacht was owned by the late businessman Luka Lundin

The Savannah was owned by Swedish-Canadian businessman Lukas Lundin, who built his fortune in diamonds and mining, and was the founder of Lundin Mining.

According to the Lundin Group website, Lundin died at age 64 in July 2022 from glioblastoma, an aggressive form of brain cancer.

The Savannah was sold in May 2025, after being on the market since September 2023, per Boat International.

Some of the cast and crew got seasick during filming

Members of the cast and crew became seasick while filming, partly due to one of the actors’ green rooms, which Knightley referred to as the “room of doom,” because it had a glass wall next to a swimming pool and the actors always had moving water in sight.

“We improved a few logistical things quite quickly because we realized … that the actors were happier,” Stone told PEOPLE, as Knightley added, “When they weren’t seasick. When they weren’t vomiting. Funny that!”

There were strict rules for filming on the yacht

Filming on an expensive and glamorous superyacht required several rules, which Stone confessed were “massively challenging.”

“We weren’t allowed to bring any film equipment on board apart from the cameras. Whatever we brought on board had to be handheld,” he told Entertainment Weekly. “So we did have some lights, but they were in hands. We didn’t have lighting stands. We weren’t allowed to put anything on the ground.”

The cast and crew were also not allowed to wear shoes while aboard the ship, something Stone wrote into the script because “that was what we went through every time we visited one of these yachts.”

“We were all walking around in our socks with cameras on our shoulders and recording equipment hanging off of us,” he recalled. “The whole thing was like we were making a guerrilla movie in a war zone, and we were on the most luxurious yacht.”

Knightley told PEOPLE about the tricky filming situation, noting that “because the boat was so expensive, we weren’t allowed to touch any of the walls.”

“We weren’t allowed to walk on any of the carpets, we weren’t allowed to sit on anything, we weren’t allowed to lean on anything,” she continued. “So we really were all, for 12 hours a day — because we weren’t allowed on and off either — crunched up against each other. So it wasn’t quite the luxury that I’d been envisaging in my head.”

In an interview with Decider, Knightly said the cast and crew “weren’t allowed to eat or drink anything, apart from in tiny little designated areas.”