The 3-D process used by the producers of this odd flick was called Nature Vision. Like most 3-D efforts such as "Comin' At Ya" and "The Man Who Wasn't There", the whole point of the exercise was the 3-D. In this, also known as 'Eyes of Hell", the 3-D sequences are pretty effective and trippy and quite bizarre. They also feel like they were shot for another film. The bridging story about a man receiving an Aztec mask is rather slow and ponderous and stylistically inert. But when the hallucinations occur, triggered by the mask, the imagery becomes psychedelic and surreal. There isn't much violence or bloodshed, but the use of the process is respectable. I saw this originally at a drive-in and I well remember the original, colored ad mat (red) that promoted the film's gimmick.
Review of The Mask
