Corrected entry: You can see the Black Rider's effects mask when he's asking the hobbit about "Shire. Baggins". There's a bluish glint on it.
Corrected entry: You can see the Black Rider's effects mask when he's asking the hobbit about "Shire. Baggins". There's a bluish glint on it.
Correction: Already listed and corrected. There's no reason the Ringwraiths can't actually wear masks under their hoods.
Twotall
This is a mistake. The Nazgul do not wear masks under their hoods. The "bluish glint" described is consistent with fabric used for the post-editing process to create the darkness effect over the face of the actor. Behind-the-scenes footage shows that the actors wear the aforementioned blue face masks to capture effect, so this entry is correct.
No, it is not. This entry isn't correct. It was done deliberately in order to make them appear more scary and menacing. No mistake at all.
Behind-the-scenes footage are not part of the movie itself, and therefore inadmissible. Within the context of the movie, the Ringwraiths may very well wear some sort of masks (as they are to have covered every other part of their "bodies").
Twotall