Alexandre Dumas’ The Three Musketeers has been made into an action swashbuckler film about once every generation or so, with movie versions produced in 2011, 1993, 1973, 1948, and 1935. But before any of those films, and others like it, there was this silent version, from 1921, starring the original cinematic swashbuckler, Douglas Fairbanks, as D’Artagnan.