im oto ▁liked . ▁In ▁developing ▁Nar uto ' s ▁role , ▁K ish im oto ▁felt ▁it ▁would ▁not ▁be ▁entertain ing ▁to ▁see ▁him ▁as ▁a ▁f law less ▁father ▁and ▁instead ▁decided ▁to ▁make ▁him ▁an ▁in comp et ent ▁one . ▁However , ▁he ▁wanted ▁Nar uto ▁and ▁Bor uto ' s ▁bond ▁strength ened ▁during ▁the ▁plot . ▁Y ū ko ▁San pe i ▁was ▁thank ful ▁for ▁being ▁offered ▁this ▁position ▁and ▁j oked ▁about ▁how ▁Jun ko ▁Take uch i ▁became ▁a ▁" father " ▁as ▁her ▁voice ▁role ▁was ▁Nar uto . ▁Initial ly , ▁San pe i ▁rec alls ▁having ▁difficulties ▁vo icing ▁Bor uto ; ▁when ▁she ▁received ▁her ▁script ▁for ▁the ▁film , ▁she ▁began ▁to ▁understand ▁Bor uto ' s ▁concept ▁as ▁the ▁boy ▁who ▁lov es ▁his ▁father ▁dear ly , ▁which ▁helped ▁her ▁voice ▁the ▁character ▁better . ▁N oria ki ▁Sug iy ama ▁expected ▁to ▁see ▁a ▁bond ▁between ▁his ▁character , ▁S as u ke , ▁and ▁his ▁student ▁Bor uto . ▁ ▁Audio ▁ ▁Y as u har u ▁Tak an ashi ▁composed ▁the ▁music ▁for ▁Bor uto : ▁Nar uto ▁the ▁Movie . ▁The ▁sound track ▁was ▁released ▁in ▁Japan ▁on ▁August ▁ 5 , ▁ 2 0 1 5 . ▁K ish im oto ▁wanted ▁the ▁band ▁K ana - B oon ▁to ▁play ▁the ▁main ▁theme ▁song , ▁having ▁been ▁im pressed ▁with ▁their ▁work ▁on ▁" Sil hou ette " ▁which ▁was