▁to ▁Chinese ▁painting , ▁with ▁water color ▁and ▁simpler ▁design , ▁as ▁opposed ▁to ▁the ▁details ▁of ▁The ▁Lion ▁King ▁and ▁The ▁H unch back ▁of ▁Notre ▁D ame . ▁B acher ▁further ▁studied ▁more ▁than ▁thirty - five ▁film ▁direct ors ▁r anging ▁from ▁the ▁silent ▁era ▁German ▁Expression ism , ▁British ▁and ▁American ▁ep ics ▁of ▁the ▁ 1 9 5 0 s ▁and ▁ 6 0 s , ▁and ▁the ▁sp agh etti ▁western s ▁for ▁insp iration ▁for ▁composition , ▁light ing , ▁and ▁st aging ▁that ▁would ▁establish ▁settings ▁that ▁en hanced ▁the ▁characters . ▁Add itional ▁insp iration ▁was ▁found ▁in ▁the ▁earlier ▁Disney ▁animated ▁films ▁such ▁as ▁B amb i , ▁Pin oc chio , ▁and ▁Dum bo ▁to ▁establish ▁a ▁sense ▁of ▁st aging . ▁ ▁In ▁October ▁ 1 9 9 7 , ▁the ▁W alt ▁Disney ▁Company ▁announced ▁a ▁major ▁expansion ▁of ▁its ▁Florida ▁animation ▁operations ▁construct ing ▁a ▁ 2 0 0 , 0 0 0 - square - foot , ▁four - story ▁animation ▁building ▁and ▁the ▁addition ▁of ▁ 4 0 0 ▁anim ators ▁to ▁the ▁work force . ▁ ▁To ▁create ▁ 2 , 0 0 0 ▁Hun ▁soldiers ▁during ▁the ▁H uns ' ▁attack ▁sequence , ▁the ▁production ▁team ▁developed ▁crowd ▁simulation ▁software ▁called ▁Att ila . ▁This ▁software ▁allows ▁thousands ▁of ▁unique ▁characters ▁to ▁move ▁autonom ously . ▁A ▁variant ▁of ▁the ▁program ▁called ▁D ynast y ▁was ▁used ▁in ▁the ▁final ▁battle ▁sequence ▁to ▁create ▁a