Ancient Egyptian Labyrinth on the wall of the National Film Board's Labyrinth pavilion at Expo attracts the attention of fair visitors. Inside the building are two other labyrinths; one from Crete and one from Greece. Awaiting the viewer inside is a three-stae cinematic experience that is unlike anything seen on film before. Reaction to it ranges from great elation to deep puzzlement; but no one goes away unimpressed. Roman Kroitor spent 3 1/2 years making film.