Will Rudolph Valentino do for the Russian what he did for the Latin? Meaning, will he make us thing of the romantic male when a Russian is mentioned? Ever since Rudy glided through “The Four Horsemen” and cut a great big niche for himself in the cinema hall of fame we have thought of Spaniards and Argentinians whenever the discussion led to heart flutters. We even think of “sheiks” as being of Latin persuasion. All of which speculation is due to the fact Valentino is appearing as a Russian in “The Eagle,” a glamorous film showing at the Liberty theater Sunday and Monday. Vilma Hanky, famous Hungarian beauty, plays opposite the star. Louise Dresser, noted stage and vaudeville star for years, has a featured role as the Czarina.