Reviews provided by RottenTomatoes
New York Times:
It seems that neither Miss Bergman nor Mr. Hitchcock has tangled here with stuff of any better than penny-dreadful substance and superfical demands.
Shot in astonishingly elaborate long takes, this is the kind of film that finds the most brilliant poetry in the slightest movement of the camera -- a paradigm of cinematic expression.
Giddily atypical in its style even as it explores lurid new byways of Hitchcock's familiar obsessions.
A strangely unexciting but emotionally intriguing Hitchcock costume drama with echoes of Rebecca and Suspicion.
Under Capricorn is overlong and talky, with scant measure of the Alfred Hitchcock thriller tricks.