The husband's corpse which is buried in the forest is very clearly (and obviously) a dummy.
A Cornish Rex cat first appears at 14:30. The breed first appeared around 1950.
The glass panes of the windows and doors are much larger than they would have been at the time this story is set.
When Anna is being released from the tarp she is nude and visible bikini lines are showing on her back. The year is 1865 in the film, and she certainly wouldn't have had these bikini lines on her body.