The Italian cast credits bear no relation to the actual cast, either American or European. The whole credit sequence may be taken from a genuine American/Italain co-production of 1979 by Gerard Damiano and Marc Ossena, or it may be entirely fake. None of the cast names can be found on imdb. Anyway, there appears to be no actual Italian footage in the film viewed.
A caviardage of 62 mins. where footage from Damiano’s Portrait (1974, 80 mins., Jodi Maxwell and Rita Davis), which seems to drive the story, is intercut with European footage, mostly from Andrei Feher’s Gräsänkor på skandalsemester (1978)