, ▁calling ▁the ▁idea ▁" an ▁ob session ". ▁ ▁Sa ul nier ▁created ▁a ▁short ▁film ▁set ▁in ▁one ▁as ▁part ▁of ▁a ▁ 4 8 - hour ▁film ▁challenge ▁in ▁ 2 0 0 7 ▁which ▁involved ▁the ▁super natural ▁and ▁according ▁to ▁Sa ul nier ▁ ▁was ▁" Re ally ▁kind ▁of ▁fun ▁and ▁ham my ." ▁However , ▁he ▁still ▁wanted ▁a ▁chance ▁to ▁do ▁his ▁green ▁room ▁movie ▁" the ▁right ▁way ". ▁Although ▁the ▁film ▁features ▁a ▁large ▁amount ▁of ▁violence ▁and ▁what ▁Sa ul nier ▁calls ▁" full ▁front al ▁g ore ", ▁he ▁has ▁gone ▁on ▁record ▁as ▁stating ▁that ▁it ▁is ▁not ▁" s ad istic ", ▁and ▁that ▁every ▁act ▁of ▁violence ▁apart ▁from ▁the ▁initi ating ▁incident ▁is ▁done ▁with ▁a ▁reason . ▁ ▁As ▁such ▁Sa ul nier ▁made ▁sure ▁that ▁there ▁were ▁no ▁" gr at uit ous ▁close ▁ups " ▁of ▁recently ▁dece ased ▁characters . ▁ ▁On ▁May ▁ 2 2 , ▁ 2 0 1 4 , ▁it ▁was ▁announced ▁that ▁Broad ▁Green ▁Pictures ▁would ▁fin ance ▁and ▁produce ▁the ▁film ▁directed ▁and ▁written ▁by ▁Jer emy ▁Sa ul nier , ▁with ▁Film ▁Science . ▁An ish ▁Sav j ani , ▁Neil ▁Ko pp ▁and ▁Victor ▁Mo y ers ▁would ▁produce ▁the ▁film . ▁On ▁October ▁ 1 6 , ▁Anton ▁Y el chin ▁and ▁Im ogen ▁Po ots ▁joined ▁the ▁lead ▁cast ▁of ▁the ▁film , ▁along ▁with ▁Al ia ▁Sh awk at , ▁Call um