In the opening sequence, Tessa is shown with blood running between the fingers of her left hand, presumably from touching herself on the head immediately after being hit. In the last shot during this sequence, there is no trace of blood on her left hand.
Tessa falls from her horse after hitting low branches from a tree and falls onto the ground. The shot is seen from the front and is outdoors. When Lon turns around to see what has happened to her (shot on a set) he runs just a few yards 10-12 to get to her. This is much too close as the initial view showed much more distance than 10-12 yards of open space in front of Tessa's horse. In addition, the area Tessa is lying on (on the set) is not as green as the initial outdoors shot.