The Movie Trilogy Sourcebook is a 1993 role-playing supplement for "" published by West End Games. Contents. "The Movie Trilogy Sourcebook" is a supplement in which material from previous books is revised and expanded. Reception. Chris Hind reviewed "The Movie Trilogy Sourcebook" in "White Wolf" #47 (Sept., 1994), rating it a 3 out of 5 and stated that "Unless you already own "Galaxy Guides 1", "3" and "5", you should probably buy "The Movie Trilogy Sourcebook"."