The Buttercup Chain is a 1970 British drama film directed by Robert Ellis Miller. It was entered into the 1970 Cannes Film Festival.
^ "Festival de Cannes: The Buttercup Chain". festival-cannes.com. Retrieved 2009-04-10.Synopsis
France and Manny are cousins, born on the same day to twin sisters. They grow up feeling a bond as if brother and sister. When he returns to London from boarding school, France and Manny make a pact in which each finds a suitable romantic partner for the other. But when they go away to the countryside with Margaret and Fred, a strange incestuous impulse seems to exist between the cousins, while Manny also must deal with a pregnancy.
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