I looked up this film because we’re under a winter storm warning here in upstate New York, and D. W. Griffith actually waited for a blizzard to film some of the outdoor scenes. Also, Lillian Gish was on a real ice floe, in take after take… .
Actors are lucky to have CGI today when a director orders up some realism.
On looking more closely, this is also a very powerful melodrama. Enjoy!