sentences:  Critic James F. Maxfield has suggested that "Vertigo" can be interpreted as a variant on the Ambrose Bierce short story "An Occurrence at Owl Creek Bridge" (1890), and that the main narrative of the film is actually imagined by Scottie, whom we see dangling from a building at the end of the opening rooftop chase.The screenplay of "Vertigo" is an adaptation of the French novel "D'entre les morts" ("From Among the Dead") by Pierre Boileau and Thomas Narcejac.Hitchcock had attempted to buy the rights to the previous novel by the same authors, "Celle qui n'était plus", but he failed, and it was made instead by Henri-Georges Clouzot as "Les Diaboliques".