Mr. Sardonicus/Fun Facts
From The Grindhouse Cinema Database
- When Sir Robert first arrives at Castle Sardonicus, the castle is in view in the background. The lighted windows make the castle look like a skull.
- Director Trademark- William Castle: [gimmick] During its initial theatrical release, attendees were given small white cards with luminous thumbs with which to vote thumbs-up or thumbs-down.
- SPOILER: Although the audience could vote on whether the main character could be pardoned or receive further punishment, technology to "choose" and ending did not exist at the time. William Castle filmed only one ending for the movie, and the "vote" was rigged by planting speakers in the theatre to vote for punishment.
- The correct term for Baron Sardonicus' condition is hysterical rictus.