Question: When the View-Master was the official film of Disneyland in the 1970s, an actor whose career spanned how many decades was its spokesman?
Sentence (from "Gregori Chmara"): Gregori Mikhailovich Chmara (Ukrainian: Хмара Григорій Михайлович, Russian: Хмара Григорий Михайлович; 29 July 1878 - 3 February 1970) was a Ukrainian-born stage and film actor whose career spanned six decades.
Relevant evidence: No