Originally Posted by
chucko
It was in the plot of the 1964 movie which was so distant from Ernest Gann's
magnum opus book of the same title that he disowned the movie.
From Wikipedia:
The plot of the 1964 film
Fate Is the Hunter had no relation to the book. Gann had written some early drafts of the script, but was so unhappy with the final result that he asked to have his name removed from it. In his autobiography, A Hostage to Fortune, Gann wrote, "They obliged and as a result I deprived myself of the TV residuals, a medium in which the film played interminably."
https://en.wikipedia.org/wiki/Fate_Is_the_Hunter