The reminiscences from Walsh's biography contain at least two major errors. He claims to have discovered John Wayne and that "The Big Trail" was his first film. In fact, Wayne had played bits and extras in over 20 films prior, and if anyone "discovered" him, it was John Ford. Secondly. he said Darryl Zanuck left Warner Bros. for Fox when the latter essentially was bankrupt. Zanuck started Twentieth Century Pictures in 1933, releasing through United Artists. It was two full years before the two companies merged and Zanuck took over.
Bad editing - there is an obvious cut toward the end, right after Lee Marvin relates how Raoul Walsh's "attitude sets the whole tenure (sic; he meant 'tenor') and tone of the film".