Ngokusho komdlali, ifilimu kufanele ithwale isithembiso esibalulekile okufanele sifanelekele ukuba khona. UChristopher Lloyd utshele ngalokhu engxoxweni nge-comicbook: "Ngicabanga ukuthi ukuqhubeka kufanele kudluliselwe kuwo wonke umyalezo obalulekile womhlaba, ngokwesibonelo, ukuguquka kwesimo sezulu. Ngandlela thile ifilimu kufanele ihlanganise abantu ngenkinga evamile futhi ngasikhathi sinye balondoloze umoya wezingxenye ezintathu zokuqala. " Umlingisi uphinde wachaza ukuthi lo msebenzi onzima kakhulu, ngoba wayengeke afune enye ifilimu ukuba azalwe futhi adumaze abalandeli.
ULloyd waphawula ukuthi uzovuma ngenjabulo ukwembula ekuqhubekeni kwezikhathi zokufakelwa kanye ne-dock brown, uma uRobert Zeecis noBob Zale bavuma le nto. Kepha iminyaka eminingi, isikhundla seZeekis sihlala sinjalo: ifilimu elisha lisesidumbu sakhe kuphela. Abalandeli abaningi be-trilogy yasekuqaleni bawusekela umbono wakhe futhi bayavuma ukuthi akukho lutho oluhle olungenzeka kusuka ekuqhubekeni. ULloyda ubeneminyaka engama-80 ubudala, uMichael Ja Fox usenesikhathi eside ehlushwa isifo sikaParkinson, futhi akekho noyedwa ozokwamukela abalingisi abasha. Ngazo zonke lezi zimo, abalandeli bahlangana emcabangweni owodwa: Kungcono ukuthinta okungcwele kunoma ngubani.
