The site you recommended sells the font for $30.
Silentina is used often in actual silent film restorations...
Problem is, most intertitles were hand lettered, so a font looks too uniform to the picky, but I don't know of anyone who still practices the art of hand lettering for signs.
Of course, by hand-kerning the text, you can get a lot closer to a more agreeable look.
Frank Wylie
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