Mother Mary stars internet faves Anne Hathaway and Michaela Coel, is directed by Ghost Story and The Green Knight ’s David Lowery, and is soundtracked with original music by Jack Antonoff and Charli XCX.

Anne Hathaway is a master at her craft, but that doesn’t mean it always comes easy. In an interview for the August issue of Vogue, Hathaway detailed the work that went into preparing for her starring role in the upcoming melodrama Mother Mary.

The Oscar winner offers details about the film, which delivered the most challenging role of Hathaway’s career during a shoot in Germany where people may have gone “temporarily, mildly insane.”