“In the Mouth of Madness isn’t John Carpenter’s best horror movie to date, but it may well be his scariest.” – Jonathan Rosenbaum, Chicago Reader

“This is terror at its most delicious.” – Almar Haflidason, BBC.com

“This is one of the best Lovecraft adaptations committed to film and it’s not even based on any of his works!” – Michelle Kisner, The Movie Sleuth