Trees lie where they fall, and men were buried where they died. One of the most frustrating things in cinema is that of the interfering studio. Too many films, since cinema became the medium so massively loved by so many, have fallen victim to this most poisonous fly in the cinematic ointment. One such film to suffer greatly is the William A. Welman directed Western, Across The Wide Missouri. All the elements were in place, a fine story written by Talbot Jennings & Frank Cavett, which is worked from Bernard DeVoto's historical study of the American fur trade in the 1830s. Wellman (The Call…