Question: Darleen Carr has two sisters, one is Shannon Farnon, the other was best known for her role in the 1965 film version of what?
Sentence (from "Charmian Carr"): Charmian Carr (born Charmian Anne Farnon; December 27, 1942 – September 17, 2016) was an American actress and singer best known for her role as Liesl, the eldest Von Trapp daughter in the 1965 film version of "The Sound of Music".
Relevant evidence: Yes