Tarkovsky once said that a director who realizes somebody else's screenplay without being involved in it becomes a mere illustrator, resulting in dead and monotonous films.
tɑːɹkˈɑːvski wˈʌns sˈɛd ðˌæɾə dᵻɹˈɛktɚ hˌuː ɹˈiːəlaɪzᵻz sˈʌmbɑːdi ˈɛlsᵻz skɹˈiːnpleɪ wɪðˌaʊt bˌiːɪŋ ɪnvˈɑːlvd ɪn ɪt bɪkˌʌmz ɐ mˈɪɹ ˈɪləstɹˌeɪɾɚ, ɹɪzˈʌltɪŋ ɪn dˈɛd ænd mənˈɑːtənəs fˈɪlmz.