When Harriet meets Robert Martin and his sister in Fords, it is raining. She goes in and is only slightly damp, and apparently soon dries off. When she leaves, and Robert Martin runs after her they are only out in the pouring rain for a few seconds yet when they both stop you can clearly see that they are both absolutely drenched when they should have only been getting a little wet.
Harriet runs her fingers along a harp and the sound that is heard is a perfect chord going up a scale, fitting in perfectly with the music that is being played. In reality, it would be virtually impossible to pluck a perfect chord when you run your fingers casually along the strings, and secondly any sound made would be going *down* scale, since she was dragging her fingers that way down the strings.