No true trout or steelhead fishermen would keep every single fish they would return most of them to the river so to me this movie doesn't make sense and whoever wrote the screenplay needs to do their research. I've never read the book so I don't know what the book says I plan on reading it. No true trout fishermen would keep every fish, especially fly fisherman. The fact that the movie depicts him killing every single fish and having this huge cooler full of trout is appalling to me as a trout fisherman.