How To Write Spec Script . For example, if you are writing for the horror genre, it’s best if you write your spec script about vampire or zombie stories instead of bomb threats or. Gather their feedback and ask them to be a reviewer for your technical spec. 5 of the Best Movie Scripts to Learn From in Each Major Genre from www.scriptreaderpro.com Bind your screenplay between two pieces of cover stock in white, blue or black. This is where it can get tricky. But it’s the presentation that can kill that sale before a studio even flips the cover.