According to Greg Mank's book "Karloff and Lugosi, Karloff received $10,000 for his work, Lugosi $5000, Irene Ware $625, Lester Matthews $1153.76, and Samuel S. Hinds $1333.35.
According to "The Immortal Count," the scene where Jerry is hanging in mid-air from the doorknob of Jean's room was laughed at by theater audiences at the premiere.
Shooting lasted from Mar. 20-Apr. 5, 1935, released July 4 in NYC, with Bela Lugosi in attendance, due to sail to England to begin Phantom Ship (1935).
After shooting the mirrors, Boris Karloff's grunt sound exactly like those he did in Frankenstein (1931)
According to "Karloff and Lugosi" director Lew Landers received $900, exactly the same that Edgar G. Ulmer received for "The Black Cat," another Lugosi/Karloff vehicle.
The on-screen billing switches the character names played by Spencer Charters and Ian Wolfe. Charters actually portrays Colonel Bertram Grant, while Wolfe appears as Geoffrey "Pinky" Burns.
During the gallery of mirrors reveal, when Bateman yells "NO!" that is not Boris Karloff's voice but a post production dub-over.
Part of the original Shock Theater package of 52 Universal titles released to television in 1957, followed a year later with Son of Shock, which added 20 more features.
For the B.B.F.C, the above film was the final straw. The British film censors decided to withdraw any further horror movies from being shown in the U.K.
The book "Universal Horrors" detailed Lugosi's anger and resentment with Karloff being billed first, even though Lugosi had the leading role in "The Raven."