While filming the closet scene, Lillian Gish's performance of pure terror was so realistic that D.W. Griffith was compelled to shout back at her and urge her further. A passerby heard this going on and, convinced that something terrible was going on, had to be restrained from entering the studio.
According to Lillian Gish, the film was so well planned and rehearsed that the only editing that D.W. Griffith needed to do was snip off the beginnings and endings of scenes.
The only makeup Richard Barthelmess used in order to appear Oriental was a very tight rubber band stretched around his forehead, pulling his facial features slightly upward. The rubber band was cleverly concealed beneath his cap.
D.W. Griffith saw Lillian Gish using her smile gesture with her fingers and decided to incorporate it into the filming.
The film's premiere engagement included a live prologue featuring a dance routine performed by actress Carol Dempster. During Dempster's dance the stage was illuminated by blue and gold footlights. Later, during the screening of the film, a stagehand accidentally switched on those footlights and the movie screen tinted the film in an unusual way. D.W. Griffith, standing in the rear of the auditorium, was so surprised and delighted at the blue and gold-tinted effect that he ordered all copies of the film to be tinted in those colors during certain key sequences.