Pre-Halloween camera, eroticism, realistic Hyde portrayal; all creates the most successful film adaptation. by the way, Hopkins is an underrated actress of the Golden Era who played in Lubitsch movies like Trouble in Paradise and Design for Living and many more (The Story of Temple Drake, The Children's Hour) very well.
Marsh's Mr. Hyde is such a great character. Some moments of dialogue and storytelling are a bit stiff. And I guess the film's best and most inventive moments could be silent (the sexy superimposed swinging leg).
A handsome adaptation of one of the most filmable novels, with the great Miriam Hopkins as the ill-fated floozy. It contains a few moments of marvelous cinematographic whimsy and some interestingly evocative experiments in editing.