The thirties horror films that are best remembered are always the likes of Dracula and Frankenstein; and there's a very good reason for that, but there were a number of smaller but nevertheless excellent productions, and The Invisible Ray is certainly one of them. The plot is not particularly original and similar plots have been seen many times before (even way back in 1936) but the way that everything is put together is certainly very imaginative and director Lambert Hillyer has created a very nifty little original horror film. The plot focuses on the good hearted Dr Janos Rukh; a man who has discovered a way to recreate the history of the Earth. His discovery leads him to believe that there may be an unknown radioactive element somewhere in Africa and so he sets off along with a team of esteemed colleagues to find it. However, tragedy strikes while on the expedition and the good doctor ends up becoming exposed to the element; which makes him glow in the dark, and also sends him mad...
The biggest draw of the film is undoubtedly the fact that it stars the two biggest horror stars of its day - Boris Karloff and Bela Lugosi, and both give excellent performances. Karloff really shows what a good actor he is and his character has plenty of meat for Karloff to impress with. Bela Lugosi has a role which is extremely different from what we're used to seeing him in, and it's a great performance from him also; it's nice to see a bit of versatility from Lugosi. The film does get off to a rather slow start; but things soon start to pick up. The second half of the film is the best and that's really when the film gets exciting and Karloff gets a chance to shine (literally). The film does not put its focus on big special effects and largely relies on the actions of the central character to keep things interesting; and it does work very well. The film remains interesting throughout and boils down to a very decent climax that wraps everything up nicely. Overall, The Invisible Ray may not be one of the very best horror films of the thirties; but it's a very good one and comes recommended.

...Ever. This is the bottom. I am not joking. The theater should've had a warning of some kind. 'Abandon all hope ye who enter here' would've been fitting.
I don't have the words to describe accurately the hell that this movie is. Its debilitating stupidity even fails to amuse. This movie is definitely aimed at some of the slower turtles in the sandbox. The story was blatantly stolen from a 10 minute Bugs Bunny cartoon and then stretched like Mr. Fantastic to 90 excruciatingly painful minutes.
I remember when the Wayans's were funny. I guess the pressures of Hollywood for them to produce produce produce are to blame for the poop that churns out at a consistent rate. I'm sad and offended that they think we are stupid enough to enjoy 90 minutes of kick-in-the-balls jokes with a thin plot based on a cartoon.
I disliked nearly everything about this movie. I won't spoil anything but the baby is actually a midget with Marlon Wayans's face poorly superimposed over the midget's body. What I DID like was the ending. Not the movie's resolution, but the actual end where we all stood up and walked out.
I gave this movie one star, but it clearly deserves less. I don't feel that the six minutes they spent writing the script is worth a star. This does deserve a Razzie and I pray to God it gets it.
When are people going to learn; if you stop paying to see this idiocy they will stop pooping it out. Seppuku is a reasonable alternative to this film. Avoid it at all costs. You have been warned.