▁around ▁£ 3 0 0 , 0 0 0 ▁and ▁was ▁entirely ▁provided ▁by ▁Nat ▁C ohen ▁at ▁Ang lo - A mal g am ated . ▁ ▁Sh ir ley ▁Mac La ine ▁originally ▁was ▁cast ▁as ▁D iana , ▁but ▁was ▁replaced ▁by ▁Christ ie . ▁Production ▁on ▁Dar ling ▁comm enced ▁in ▁August ▁ 1 9 6 4 ▁and ▁wrapped ▁in ▁December . ▁It ▁was ▁fil med ▁on ▁location ▁in ▁London , ▁Paris , ▁and ▁Rome . ▁The ▁final ▁scene ▁was ▁shot ▁at ▁He ath row ▁Airport ▁in ▁London . ▁ ▁New ▁York ▁in ▁ 1 9 7 1 ▁wrote ▁of ▁mod ▁fashion ▁and ▁its ▁wear ers : ▁" This ▁new ▁dé class é ▁English ▁girl ▁was ▁ep it om ized ▁by ▁Jul ie ▁Christ ie ▁in ▁Dar ling — am oral , ▁root less , ▁em otion ally ▁imm ature , ▁and ▁apparently ▁ir res ist ible ." ▁Despite ▁receiving ▁many ▁awards ▁at ▁the ▁time ▁of ▁release , ▁the ▁film ▁has ▁a ▁mixed ▁reputation ▁now . ▁In ▁his ▁New ▁Bi ographical ▁Dictionary ▁of ▁Film ▁entry ▁on ▁Schles inger , ▁David ▁Thom son ▁writes ▁that ▁the ▁film ▁" des erves ▁a ▁place ▁in ▁every ▁archive ▁to ▁show ▁how ▁rapidly ▁mod ish ness ▁with ers . ▁Beaut y ▁is ▁central ▁to ▁the ▁cinema ▁and ▁Schles inger ▁seems ▁an ▁un re li able ▁judge ▁of ▁it , ▁over - rating ▁Christ ie ▁and ▁rarely ▁getting ▁close ▁enough ▁to ▁the ▁action ▁to ▁make ▁a ▁fruit ful ▁sty list ic ▁bond ▁with ▁it ".