▁Mer ritt ▁was ▁h ired ▁by ▁Bo orm an ▁again ▁to ▁the ▁editor ial ▁crew ▁of ▁Ex or c ist ▁II : ▁The ▁Her etic , ▁the ▁sequ el ▁to ▁one ▁of ▁the ▁most ▁famous ▁horror ▁mov ies ▁of ▁all ▁time ▁The ▁Ex or c ist . ▁Appar ently ▁Bo orm an ▁was ▁happy ▁with ▁Mer ritt ' s ▁work ▁thus ▁farm ▁as ▁he ▁h ired ▁him ▁again ▁four ▁years ▁later ▁as ▁the ▁head ▁editor ▁for ▁his ▁ret elling ▁of ▁the ▁legend ▁of ▁King ▁Arthur ▁and ▁the ▁kn ights ▁of ▁the ▁Round ▁Table , ▁Ex cal ib ur . ▁This ▁film ▁was ▁based ▁on ▁the ▁ 1 5 th - century ▁Arthur ian ▁rom ance ▁Le ▁Mor te ▁d ' Ar thur ▁by ▁Thomas ▁Mal ory . ▁While ▁Ex cal ib ur ▁did ▁not ▁do ▁very ▁well ▁with ▁critics , ▁the ▁New ▁York ▁Times ▁said ▁it ▁" l um bers ▁along " ▁and ▁" acc um ul ates ▁no ▁momentum ." ▁it ▁has ▁done ▁quite ▁well ▁with ▁aud ien ces ▁as ▁it ▁currently ▁has ▁ 8 0 % ▁on ▁Rotten ▁Tomatoes . ▁While ▁John ▁Mer ritt ▁is ▁not ▁widely ▁known , ▁his ▁working ▁repeatedly ▁with ▁inf am ous ▁writer / direct or ▁John ▁Bo orm an ▁is ▁a ▁statement ▁to ▁his ▁great ▁skill ▁in ▁the ▁editor ial ▁field . ▁ ▁Film ography ▁ ▁Editor ▁ ▁Ex cal ib ur ▁( 1 9 8 1 ) ▁ ▁The ▁L ively ▁Arts ▁( TV ▁Series ▁document ary ) ▁( 1 ▁episode ) ▁ ▁- ▁But