 He wrote the satirical book "Encyclopaedia of Hell", and sold the film rights to Warner Bros. through Andrew Lazar of Mad Chance Productions.With Ken Kaufman and Howard Klausner, Olson co-wrote the final draft of the screenplay adaptation of his book for WB under a new title, "D-Men".Olson collaborated with special effects director Phil Tippett on the screenplay for "Veronica's Daughter", with writer-director Bobcat Goldthwait on the screenplay "Sightings" for United Artists, with writer-comedian Rob Schneider on the screenplay "Family Disorder" for Touchstone, with writer-comedian Kevin Nealon on the screenplay "Late Bloomer", with Ken Locsmandi on the story and screenplay for "Bronson Beak", and with Robert Sheckley on the screen adaptation of his wonderful novel "Dimension of Miracles".