Sekureva kweDzidziso Yakatarwa, "JEK" yakaunzwa kumudyire uye iyo Script zvine mwero kwazvo. Panguva imwecheteyo, muimbi wezana guru basa Joaquin Phoenix akabvumirana kune Reverse Mamiriro ezvinhu: Mari yakavimbiswa isati yasunungurwa yefirimu pamwe necent chikamu chidiki chemari. Kwaive kubudirira kusingaenzaniswi kwe "joker" kuhofisi yebhokisi kwakabvumidzwa iyo Phillips kuti iwanezve phoenix pane iyo firimu.
Gore rapfuura, Joker rakava imwe yezviitiko zvakajeka kwazvo munyika yemivhu rekodhi yemafirimu ane "Adult" Rating R.
Sekureva kwedata rakaburitswa, "JEK" akapa vagadzike purofiti yemadhora mazana masere nemakumi matatu emamiriyoni emadhora. " ). Panguva imwecheteyo pakutanga Studio Wanneer Bros. Paive nekusahadzika nezve tarisiro yeiyi chirongwa, kubvumirana kufukidza hafu yebhajeti kwayo, nepo kune imwe 25% yehuwandu hunodiwa hwakapihwa neBron Studios Company Company uye Musha RoadShow. Iyo studios yakawana madhora zviuru makumi mana nemazana mana emamiriyoni paJokerora, kukamura mari iyi pakati pavo maererano nekudyara kwayo mari.