Known as Hollywood's "Thrill Factory," Republic Pictures produced some of the most exciting serials to hit the big screen. The studio's chapterplays were one of the most popular Saturday matinee genres. Covering nearly 70 serials, the filmographies include full production credits; release dates; chapter titles; running times; sound systems (when applicable); a note on reissues, condensations and sequels; and an extensive cast list showing roles played. Included are an essay on the general development of the American serial and a history of Republic studio to the present.