Blondie, Boston Blackie, Ellery Queen, The Lone Wolf, Gasoline Alley, Jungle Jim... These are but a sampling of the 27 film series produced and released by Columbia Pictures from 1926 through 1955. This survey covers the origins of the popular fictional characters featured, as well as their appearances in other media (comics, novels, radio and television). Also provided are thumbnail biographies of the actors who brought these characters to life. The films themselves are examined in detail, with release dates, cast and production credits, synopses, reviews, the author's summation, the "tag lines" used in publicity, and the songs heard in individual titles. Additionally, most of the outdoor locations used in filming such Columbia western series as Wild Bill Saunders and The Durango Kid are identified.