Writes Roger Ebert :
"…On a drowsy St. Valentine's Day in 1900, a party of girls from a strict boarding school in Australia goes on a day's outing to Hanging Rock, a geological outcropping not far from their school. Three of the girls and one of their teachers disappear into thin air. One of them is found a week or so later, but can remember almost nothing. The others are never found.
"On this foundation, Peter Weir's "Picnic at Hanging Rock" (1975) constructs a film of haunting mystery and buried sexual hysteria. It also employs two of the hallmarks of modern Australian films: beautiful cinematography and stories about the chasm between settlers from Europe and the mysteries of their ancient new home.…"