Remember vividly a film as a kid. Plane crashes in either jungle or on island and they build a society. Survivors include a stewardess who has a liason in crashed plane and finds out a lion/tiger is stealing them or eating the bodies something like that. I remember one passenger gets in trouble stealing jewellery from the dead. Also there was a young person, think it was a girl, who gets her first kiss on the beach. It was definitely pre 1990, in colour. I think 70s or 80s because there was some farrah fawcett hair. I can't remember if they get rescued.