Bo was only 16 when she filmed this

Interesting note, Bo Derek was only 16 when John Derek met her on a beach and cast her for this film, which included nudity.

They then had an affair (he was 30 years older). He then divorced Linda Evans and married Bo after she turned 18.

It so happens, Linda Evans let Derek sell nude photos he took of her to Playboy to finance the film. Then he goes and cheats on her with an underage girl. Classy guy.