Fangoria got talking to the KNB EFX Group who are doing the fx for "The Exorcist : The Beginning", as well as the "Tremors" series and "Tremors 4". . “Paul Schrader has done a polish on the script [originally written by William Wisher and Caleb Carr] and made it even better,” The Shop’s Howard Berger tells Fango. The article also revealed a few guest stars for the "Tremors" TV Series – Christopher LLoyd, Michael Rooker and Nicholas Turturro, while confirming that "Tremors" co-creator S.S. Wilson will direct "Tremors 4", which is set to lens next month.