Journey to the Center of the Earth (1959)

A scene where a woman lies on a beach exhausted. Her clothes are too exhausted and she is lying toward the camera. We can see a good portion of her breasts in this scene.

A few shorts scenes of cleavage.

A man asks a woman if she is wearing a stay (a corset). He then asks her to take it off so she can breath in the low oxygen level. She takes it off off screen behind a rock. A duck is walking by and the corset gets caught on it's foot and it drags it by two men. Much later she mentions she is wearing a stay.

We see a man showering. But there is a rock reaching out in front of his middle so no nudity.

A man is in a tree without his pants, although we can only see his upper abdomen. After he falls out of the tree he picks up a sheep to cover his middle. A few nuns are trying to help him but when he tells them he has no pants they turn around.