Charles Austin Miller

Trivia: Probably the most impressive visual effect in this film is when Corso consults the twin brothers Pablo and Pedro Ceniza (rare book experts). Both Ceniza twins were played by actor José López Rodero in the subtle and entirely convincing digital effect sequence. The only flaw was that the elderly twins had identical facial wrinkles, which never happens with real-life twins. Beyond that, José López Rodero additionally played the two nameless workmen that Corso encounters at the end of the film, meaning that Rodero played four digital-effect roles in this movie.

Charles Austin Miller

Question: How is it that Dean Corso is first on the scene of so many murders, but we never see him interacting with authorities? Corso is the first to find his murdered friend Bernie, he's the first to find the body of Fargas, and he's the first to find the Baroness strangled. Did he actually flee every murder scene without contacting the police (at least to clear his name)? Or did Roman Polanski deliberately omit police investigation scenes that might derail the plot with troublesome side-tangents?

Charles Austin Miller

Continuity mistake: Near the end, when Frank Langella performs the (flawed) satanic ritual, he pours a ring of gasoline and ignites it, then kneels down to pass his hands through the fire. They digitally inserted the reflection of the fire ring in his eyeglasses for about 10 seconds. Thereafter, his glasses do not reflect the flames, even after he douses himself with gasoline and self-immolates.

Charles Austin Miller