Mira (1971)

"Mira" (1971) includes a nude scene featuring actress Willeke van Ammelrooy.

Willeke van Ammelrooy appears nude in "Mira," showing her butt and bush during a sex scene. While there isn't much other explicit nudity in the film, this scene has been noted for its erotic content. There's also mention of a see-through shot of van Ammelrooy, adding to the film's notoriety for being one of the first Flemish movies to include such a scene.
The nudity in "Mira" is somewhat controversial as it was one of the first instances of explicit nudity in Flemish cinema, which stirred some debate and attention at the time of its release.
Specific details include:
A sex scene where van Ammelrooy's nudity is visible, with descriptions of her showing her bush through a sheer gown.
This scene is considered the film's most talked-about moment due to its explicitness in a relatively conservative cinematic landscape of the time.