Trivia / Four Flies on Grey Velvet

• Keep Circulating the Tapes: Was in this condition for quite a while.
• What Could Have Been:
  • Deep Purple was supposed to do the soundtrack.
  • Some of the earlier cast considerations for the role of Roberto were Terence Stamp, Michael York, Tom Courtenay, James Taylor and Ringo Starr.
  • Four Flies was supposed to be Argento's last giallo film.

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