89 years ago, Boris Karloff and Bela Lugosi starred in The Invisible Ray together. As a treat, I have a funny story about the film to share with you: During filming, the crew decided to play a prank on Karloff. As he was on a platform lift over the "radium pit," the crew raised Karloff up in the air…and then broke for lunch, leaving Karloff up there! According to actress Frances Drake, Karloff was a good sport about the prank. How many of you still need to add The Invisible Ray to your watchlist