Book excerpt: The Encyclopedia covers the genre from 1920 to 1994. The genre, however, can be very confusing: films often have several titles, and many of the stars have more than one pseudonym. In an effort to clarify some of the confusion, the authors have included all the information available to them on almost 3,300 films. Each entry includes a listing of the production company, the cast and crew, distributors, running times, reviews with star ratings whenever possible, and alternate film titles. A list of film series and one of the stars' pseudonyms, in addition to a 7,900 name index, are also included. Illustrated.