I think Elle's character should have had more screen time.
For one thing I think Elle Fanning, playing Ruth, was amazing (especially considering she was only 4 and 5 during filming and the role was originally supposed to be given to twin girls to handle). The story is of course about the break-up of the marriage after the death of Tim and Tommy, but Ruth is the child that is born as their "replacement", the long term effects of the movie will effect her character the most and she is neglected by her mother (and, even though he tries hard, her father is pretty self absorbed). I think this movie could've been a lot more interesting if the movie had been shot more from Ruth's point of view- the basic story line could remain the same, but then the movie would show not only what can happen to a marriage after the tragic death of children, but how a couple can try to "rekindle" their love by having another child, and how that child grows up in the shadow of her dead brothers (who she never knew) and the effects it has on her.
"I don't LIKE confrontation."
-Rex from Toy Story