Alfred Clark
... that Alfred Clark pioneered continuity, plot, and special effects in The Execution of Mary Stuart?
... that <b id="mwAdI"><a href="./Alfred_Clark_(director)" id="mwAdM" rel="mw:WikiLink" title="Alfred Clark (director)">Alfred Clark</a></b> pioneered continuity, plot, and special effects in <i id="mwAdQ"><a href="./The_Execution_of_Mary_Stuart" id="mwAdU" rel="mw:WikiLink" title="The Execution of Mary Stuart">The Execution of Mary Stuart</a></i>?