<p>This undated file photo originally released by Disney-ABC Domestic Television, shows movie critics Roger Ebert, right, and Gene Siskel.</p>
April 5, 2013
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April 5, 2013 9 p.m.
Ebert, nation's best-known film critic, dies at 70
Writer influenced a nation of moviegoers
CHICAGO - Roger Ebert had the most-watched thumb in Hollywood.