Picnic at Hanging Rock This 1975 period piece is actually being remade as a TV series starring Natalie Dormer, so there's no better time to check it out. The chilling original is set in the 1900s and focuses on a girls' boarding school in Australia and the mysterious disappearance of one of the students and a teacher that happens after an ill-fated Valentine's Day picnic. Image Source: Everett Collection