 On January 7 , 1929 , The Capitol Theatre , a major Jasper Avenue competitor to the Princess , closed for renovations promising a change that “ will please every theatre @-@ goer in Edmonton ” . Almost three months later on March 27 , the theatre reopened with dual Movietone and Vitaphone sound systems . The availability of electronically indexed articles from the Edmonton Journal has caused the proliferation of a research error in several local histories . These histories claim that the first talkie screened in Edmonton was The Canary Murder Case , and that it was screened at the Princess . In fact , the first talkie in Edmonton was Mother Knows Best , screened at the Capitol . 
