Natalie Dormer, the actress who portrayed Margaery Tyrell in 'Game of Thrones,' is starring in a new Amazon miniseries. 'Picnic at Hanging Rock' is a mystery drama that centers around the disappearance of three female students at Appleyard Ladies College where Dormer plays the relentless headmistress. The series is inspired by the 1967 novel by the same name.
