Did Grayson have any lines in the movie? I haven't seen it in a while, but from what I remember, all she did was stand still and look around. Even the scene in which she started a fire was a letdown. IIRC, she is not shown starting the fire, but merely standing and staring at it.
Another example of Hollywood's lack of imagination. The woman managed to stand out in a cast consisting of Burton, Kerr, and Gardner, and this was the best they could come up with for her.
Still, I do like the movie...
Regards,
John