I’ve read plenty and will say the screenplay for Saving Private Ryan was absolutely terrible. It read like a ‘rambo’ style film. I distinctly remember Tom Hanks’s character being more along the lines of “Go go go, shoot em boys!” rather than what turned out in the final product.
I’m assuming what I read was a very, very rough first draft.
EDIT: example taken from http://nldslab.soe.ucsc.edu/charactercreator/film_corpus/film_20100519/all_imsdb_05_19_10/Saving-Private-Ryan.html as the soldiers are on the landing craft approaching the beach.
THE BOYS AROUND HIM
Do their best to stare straight ahead. But the fear infects
them. It starts to spread.
Pushes through the men. Puts himself
in front of DeLancey.
The figure is CAPTAIN JOHN MILLER. Early thirties. By far
the oldest man on the craft. Relaxed, battle-hardened,
powerful, ignoring the hell around them. He smiles, puts a
cigar in his mouth, strikes a match on the front of DeLancey's
helmet and lights the cigar.
DeLancey tries to look away but Miller grips him by the jaw
and forces him to lock eyes. Miller smiles. DeLancey is
Delancey Captain, are we all gonna die?
Miller Hell no, two-thirds, tops.
Delancey Oh, Jesus...
Miller I want every one of you to look at the man on your
left. Now look at the man on your right. Feel sorry for
those to sons-of-bitches, they're going to get it, you're
not going to get a scratch. A few, including DeLancey, manage
thin smiles. Miller releases his grip on DeLancey who moves
his jaw as if to see if it's broken. Miller pats him on the
cheek and moves on to the bow.
good lord what a difference
and yes, I had to read them for my old job.