Deepwater. Poster of the 2005 movie and cover of the 1999 book
VS3
Deepwater
Matthew F. Jones, 1999
movie vs book
David S. Marfield, 2005

Freshly discharged from the hospital and penniless, Nat Banyon, a young drifter who lost his parents, embarks on a journey to find work on a farm in Wyoming. During his travels, he stumbles upon a car accident and heroically rescues the driver, a peculiar elderly man named Herman Finch.