MGM's first film in 3-D using the red-green anaglyph process.
First film, of three, in MGM's "Audioscopkic" series. It was followed by The New Audioscopiks (1938) and Murder in 3-D (1941).
Also released as "Metroscopix" with a wink to MGM, Metro-Goldwyn-Mayer Studios. (See, for example, the poster for the 1935 Japanese release.)