▁when ▁it ▁came ▁to ▁dynamics . ▁During ▁the ▁final ▁mix ▁there ▁were ▁moments ▁when ▁Mus chi etti ▁conducted ▁the ▁pe aks ▁and ▁valle ys ▁of ▁the ▁sound ▁design ▁and ▁score , ▁to ▁which ▁sound ▁designer ▁Paul ▁H ack ner ▁stated , ▁" It ▁was ▁in ▁these ▁moments ▁when ▁perce ived ▁silence , ▁created ▁by ▁small ▁trans ients ▁such ▁as ▁water ▁dri ps , ▁foot ▁cre aks , ▁or ▁actual ▁silence , ▁were ▁revealed , ▁resulting ▁in ▁a ▁dynamic ▁mix ." . ▁ ▁Visual ▁effects ▁ ▁Nicholas ▁Bro oks ▁was ▁the ▁overall ▁visual ▁effects ▁super visor ▁and ▁the ▁visual ▁effects ▁company ▁R ode o ▁F X ▁worked ▁on ▁most ▁of ▁the ▁visual ▁effects ▁on ▁It , ▁comple ting ▁ 9 5 ▁sh ots ▁for ▁the ▁film . ▁R ode o ▁F X ▁was ▁task ed ▁with ▁creating ▁a ▁number ▁of ▁CG ▁assets ▁to ▁either ▁enh ance ▁or ▁even ▁completely ▁replace ▁Bill ▁Sk ars g år d ' s ▁Pen ny wise , ▁amongst ▁others ▁being ▁the ▁giant ▁abandoned ▁c is tern ▁within ▁the ▁heart ▁of ▁Pen ny wise ' s ▁la ir . ▁Both ▁from ▁a ▁technical ▁and ▁cre ative ▁stand point , ▁the ▁various ▁shapes ▁created ▁for ▁Pen ny wise ▁presented ▁a ▁large ▁challenge ▁for ▁R ode o ▁F X s ▁model ing , ▁rig ging ▁and ▁creature ▁F X ▁teams . ▁The ▁visual ▁effects ▁company ▁At omic ▁Arts ▁were ▁initially ▁brought ▁in ▁to ▁create ▁the ▁paper ▁boat ▁sequence ▁for ▁It , ▁which ▁covers ▁much ▁of ▁the ▁first ▁tra ilers , ▁to ▁which