La máscara

... I don't know if that's correct, but I liked it. Paul Stevens stars as a psychiatrist who feels guilt after a patient dies. The now-dead man worked in antiquities and had recently acquired a mysterious mask that he claimed had sinister mystical attributes. The patient had mailed the mask to the doctor, who decides to try it on, only to discover that his patient was right. Also featuring Claudette Nevins, Bill Walker, Anne Collings, Martin Lavut, Leo Leyden, and Norman Ettinger.

When originally released, audience members were given 3D glasses in the shape of small masks, and they were prompted to don them whenever the mask is worn onscreen. They were treated to nightmarish sequences in 3D. These are the best parts of the film, featuring foggy ruins filled with corpse-like people, masked killers, and human sacrifice. The rest of the movie is rather unmemorable, but the nightmares/hallucinations caused by the mask make this a worth-see for horror enthusiasts. The version I watched had the 3D sequences intact, and luckily I had some old cardboard 3D glasses laying around.