You can watch it on Paramount+
Roger Ebert calls it "the best cowboy movie since "Hud"" and concludes,
The admirable thing about the movie is its devotion to real life. These are the kind of people, we feel, who must really have inhabited the West: common, direct, painfully shy in social situations and very honest. "Shane" was a cowboy movie of this type. So was "Hud," although in a modern setting. And Kirk Douglas' unrecognized masterpiece, "Lonely Are the Brave," was in the same class.Rotten Tomatoes has a critics consensus rating of 85%.