What was the first full-length feature film shot completely with a subjective point of view, that is, with a subjective camera where shots simulates what a character actually sees (audience, character, and camera all "see" the same thing).
The entire movie plot unfolds from lead Robert Montgomery's point of view, thus creating a rarity in film: the principal character is only seen on-screen as a reflection in mirrors and windows, and as the narrator speaking directly to the audience.
Most of the movies of the "Found Footage" genre are basically full lenght subjective camera works.
By the way, I can't think a 100% POV movie before The Blair Witch Project (1999).
Here You can find some good lists to dig: http://en.wikipedia.org/wiki/Found_footage_(genre) http://horror.about.com/od/horrorthemelists/tp/povhorrormovies.htm