tenor John McCormack and directed by Frank Borzage (Seventh Heaven, A Farewell to Arms), which was shipped from the labs on March 17, 1930, but never released and may no longer survive, according to film historian Miles Kreuger (the 35 mm version, however, debuted in New York on March 11, 1930); and the western The Big Trail (1930) starring John Wayne and Tyrone Power, Sr. which premiered at Grauman's Chinese Theatre in Hollywood on October 2, 1930, all of which were also made in the 70 mm Fox Grandeur process. RKO Radio Pictures released Danger Lights with Jean Arthur, Louis Wolheim, and Robert Armstrong on August 21, 1930 in a 65 mm widescreen process known as NaturalVision, invented by film pioneer George K. Spoor. On November 13, 1930, United Artists released The Bat Whispers directed by Roland West in a 70 mm widescreen process known as Magnafilm. Warner Brothers released Song of the Flame and Kismet (both 1930) in a widescreen process they called Vitascope. In 1930, after experimenting with the system called Fantom Screen for The Trail of '98 (1928), MGM came out with a system called Realife. MGM filmed The Great Meadow (1930) in Realife. However, it is unclear whether it was released in that widescreen process due to declining interest of the movie-going public. By 1932, the Great Depression had forced studios to cut back on needless expense and it was not until 1953 that wider aspect ratios were again used in an attempt to stop the fall in attendance due, partially, to the emergence of television in the U.S. However, a few producers and directors, among them Alfred Hitchcock, were reluctant to use the anamorphic widescreen size featured in such formats as Cinemascope. Hitchcock used VistaVision, a non-anamorphic widescreen process developed by Paramount Pictures and Technicolor which could be adjusted to present various flat aspect ratios. Types Masked (or flat) widescreen was introduced in April 1953. The negative is shot exposing the Academy ratio using spherical lenses, but the top and bottom of the picture are hidden or masked off by a metal aperture plate, cut to specifications of the theater's screen, in the projector. Alternatively, a hard matte in the printing or shooting stages may be used to mask off those areas while filming for composition purposes, but an aperture plate is still used to block off the appropriate areas in the theater. A detriment