sentences:  Uncredited
  
  Alfred Hitchcock makes his customary cameo appearance walking in the street in a gray suit and carrying a trumpet case.Charles Barr in his monograph dedicated to the study of "Vertigo" has stated that the central theme of the film is psychological obsession, concentrating in particular on Scottie as obsessed with the women in his life.As Barr states in his book, "This story of a man who develops a romantic obsession with the image of an enigmatic woman has commonly been seen, by his colleagues as well as by critics and biographers, as one that engaged Hitchcock in an especially profound way; and it has exerted a comparable fascination on many of its viewers.