Jo Anderson's debut.
Vivian Pickles, seen here as Martha Yellan, had co-starred in Rebecca (1979), also based on a Daphne Du Maurier novel.
The original length was 3h 16m. Then in the American broadcast it was cut to 3:07. This then became the basis for a video release.
The cut part is when Mary and Jem go to town. Missing is Jem getting into a knife fight in a pub, and the lady Bassatt discovering that he had stolen her horse and having him arrested.
A recent British re-airing and DVD release cut it a further half hour.
I had seen the full length on a Canadian late movie in 1985, and it is worth seeing every minute.