EXCLUSIVE: Juliet Stevenson has boarded Anton Corbijn ’s thriller Switzerland starring Helen Mirren as crime novelist Patricia Highsmith as shooting gets underway in Rome, sources close to the production have confirmed.

Shooting is underway in Rome on Anton Corbijn's thriller "Switzerland,” starring Helen Mirren as American crime novelist Patricia Highsmith, with Alden Ehrenreich (“Oppenheimer”) and Olivia Cooke (“House of the Dragon”) confirmed to have joined the cast.

The cast is toplined by Helen Mirren (who portrays queen of thrillers Patricia Highsmith ), Alden Ehrenreich ( Oppenheimer [+ ]) and Olivia Cooke ( House of the Dragon ).