▁in ▁ 1 9 6 0 , ▁and ▁to ▁celebr ate , ▁David ▁Kra use ▁and ▁Robert ▁Hog an ▁wrote ▁full - length ▁studies . ▁The ▁Mer ma id ▁Theatre ▁in ▁London ▁launched ▁the ▁" O ' Case y ▁Festival " ▁in ▁ 1 9 6 2 , ▁which ▁in ▁turn ▁made ▁more ▁theatre ▁establish ments ▁put ▁on ▁his ▁works , ▁mostly ▁in ▁Britain ▁and ▁Germany . ▁It ▁is ▁in ▁the ▁late ▁years ▁that ▁O ' Case y ▁put ▁his ▁cre ative ▁energy ▁into ▁his ▁six - volume ▁Aut obi ography . ▁ ▁On ▁ 1 8 ▁September ▁ 1 9 6 4 ▁at ▁the ▁age ▁of ▁ 8 4 , ▁O ' Case y ▁died ▁of ▁a ▁heart ▁attack , ▁in ▁Tor qu ay , ▁Dev on . ▁He ▁was ▁cre m ated ▁at ▁the ▁Gold ers ▁Green ▁C rem ator ium . ▁ ▁In ▁ 1 9 6 5 , ▁his ▁aut obi ography ▁Mir ror ▁in ▁My ▁House ▁( the ▁um bre lla ▁title ▁under ▁which ▁the ▁six ▁aut obi ograph ies ▁he ▁published ▁from ▁ 1 9 3 9 ▁to ▁ 1 9 5 6 ▁were ▁repub lished , ▁in ▁two ▁large ▁volumes , ▁in ▁ 1 9 5 6 ) ▁was ▁turned ▁into ▁a ▁film ▁based ▁on ▁his ▁life ▁called ▁Young ▁Cass id y . ▁The ▁film ▁was ▁directed ▁by ▁Jack ▁Card iff ▁( and ▁John ▁Ford ) ▁featuring ▁Rod ▁Taylor ▁( as ▁O ' Case y ), ▁Flora ▁Rob son , ▁Mag gie ▁Smith , ▁Jul ie