The Woman in Cabin 10 used a real $150 million boat for filming and crew 'couldn't touch anything'

The Woman in Cabin 10 is available on Netflix and was shot mainly aboard an award-winning vessel boasting some seriously lavish features.

The psychological thriller stars Keira Knightley as Lo Blacklock, an investigative journalist who gets invited on a journey across the turbulent waters of Scandinavia.

During her voyage, she encounters a woman in the adjacent cabin, who she later suspects has been hurled overboard - though nobody else will believe her story.

Production took place in the UK at Portland Port on the Isle of Portland, Dorset.

The filming team utilised a massive yacht called the Savannah, which stretches more than 273 feet in length and was constructed by Dutch company Feadship, reports the Manchester Evening News.

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The Savannah boasts six guest suites, a beach club section complete with swimming pool and a unique underwater lounge dubbed the Neptune.

Director Simon Stone revealed why he insisted on using an authentic vessel: "I wanted to make it feel like a pressure cooker that is claustrophobic and suffocating despite the grandeur.

"So we needed to shoot on a real boat, because it needed to feel like a reflection of the real world. It needed to feel like a document of a real environment."

Fortunately they located one, though he confessed it was "really, really hard to find a boat that people were willing to let a huge crew onto".

A team of 60 people were aboard, alongside the vessel's own crew of more than 25 staff members. He went on to say: "All of those people had to be sometimes in very, very small rooms. Yes, it is a massive boat, but it's supposed to have 12 passengers. It's not supposed to have 60.

"So there was very little room to move. We couldn't touch anything because it's all worth millions. We couldn't put scratches anywhere.

"We couldn't leave dents. We had to change what shoes we were wearing outside and what shoes we were wearing inside.

"It was really high tension stuff. But the crew of the Savannah were extraordinary.

"It was, of course, stressful, because in a studio, you can just get rid of a wall and go, 'OK, we can bring the camera in through there'.

"Luckily, the production team did an extraordinary job figuring out the logistics of that before we even got on the boat."

The Woman in Cabin 10 is on Netflix