Johnny Concho comes from director Don McGuire, who also co-wrote the script with David P. Harmon. The cast includes Frank Sinatra, Keenan Wynn, William Conrad, Christopher Dark and Phyllis Kirk. Nelson Riddle handled the music, and William Mellor was in charge of cinematography. It’s become a fairly obscure film in Sinatra's career, largely due to distribution problems and a general lack of enthusiasm for his perf…