The film, retitled "The Ghost Writer" in all territories except the UK, was shot in early 2009 in Berlin and on the island of Sylt in the North Sea, which stood in for London and Martha's Vineyard respectively, owing to Polanski's inability to travel legally to those places. In spite of his incarceration, he oversaw post-production from his house arrest and the film premiered at the Berlin Film Festival in February 2010, with Polanski winning the Silver Bear for Best Director award. Harris and Polanski later shared a César Award for Best Adapted Screenplay.