Trivia: Alfred Hitchcock appears 11 mins into the film walking past the building James Stewart is about to enter.
Trivia: The McKittrick Hotel was a very real building in San Francisco. The indoor set was the same one used by Hitchcock two years later in the film "Psycho."
Suggested correction: The McKittrick Hotel lobby and staircase scenes were all shot on location in San Francisco in the Henry F. Fortmann mansion. Proof can be seen in a book about the house in photos taken before it was demolished by Sacred Heart Prep School. The Psycho mansion interiors were all shot on a Hollywood soundstage.