Visible crew/equipment: Outside the chapel, when Frank backs into the pedestal the statue begins to topple over. In the shot facing up, as the pedestal falls and Frank puts his arms out to catch the statue, the wires used in this stunt are perfectly visible.
Continuity mistake: When Mrs. Waterhouse walks into the livingroom and greets her three babies, there is a large area rug in front of the coffee table. However, as the babies fly towards her in the wide shot facing her, that area rug is gone!
Trivia: At the beginning of the film Lucy and Ray watch a videotape called 'Murders, Madmen and Phychopaths', with the news report of Johnny Charles Bartlett. The reporter is a genuine TV reporter in NZ (where the film was shot), cast presumably due to her real American accent.
Trivia: When Frank comes out of the newspaper building, he walks into a guy with piercings and t-shirt with the Grim Reaper on it, this is the Director, Peter Jackson, he does a Hitchcock in all his films.