Arbitrary and capricious screenwriting teacher says:
  1. The Screenwriter's Bible by David Trottier
    Excellent all-in-one guide for beginners. Great reference for teachers.
  2. How NOT To Write A Screenplay by Denny Martin Flinn
    Actual screenwriting book written by actual screenwriter of actual good Star Trek movie (VI).
  3. Screenwriting: The Sequence Approach by Paul Joseph Gulino
    If full-length screenplays intimidate, this guy breaks it into manageable chunks.
  4. Making A Good Script Great by Linda Seger
    Good advice here.
  5. The Third Act: Writing A Great Ending to Your Screenplay by Drew Yanno
    Essential real talk about the end.
  6. Writing Movies for Fun and Profit by Thomas Lennon and Robert Ben Garant
    By actual entertainers for maximum entertaining real talk.