Zane Grey the author whose work has been translated into 112 films was also a co-author for Open Range.
Open Range is a lost 1927 American Western silent film directed by Clifford Smith and written by Roy Briant, Zane Grey, J. Walter Ruben and John Stone. 
 His novels and short stories have been adapted into 112 films, two television episodes, and a television series, "Dick Powell's Zane Grey Theater". 
