Those weren't the lyrics I think they were looking for. Those are the lyrics to River Lullaby, the Amy Grant lyrics anyway.
On a seperate note, does anyone know what lyrics they actually use in the movie? The ones I've found are different. I saw the movie on tv, guess I'll have to rent it to find out. The first verse in the movie is the same, but there is a second and third.
The second goes something like:
River, Oh river
flow gently for me
what precious cargo you bear....
And the third is actually the little sister (Miriam) singing:
Brother, Oh brother
safe may you be
I've got a prayer just for you....