▁or ▁a ▁dream ." ▁ ▁Cast ▁ ▁Lee ▁Se ung - ye on ▁as ▁Sun - h wa ▁ ▁J ae ▁He e ▁as ▁T ae - su k ▁▁ ▁as ▁Min - gy u ▁▁ ▁as ▁J ail or ▁▁ ▁as ▁Son ▁of ▁Old ▁Man ▁▁ ▁as ▁D augh ter ▁of ▁Old ▁Man ▁ ▁Moon ▁S ung - hy uk ▁as ▁S ung - hy uk ▁ ▁Park ▁Ji - a ▁as ▁Z ia ▁ ▁J ang ▁J ae - y ong ▁as ▁Hy un - so o ▁ ▁Th emes ▁and ▁interpret ations ▁According ▁to ▁author ▁H ye ▁Se ung ▁Ch ung , ▁the ▁use ▁of ▁silence ▁in ▁ 3 - I ron ▁ev okes ▁the ▁writing ▁of ▁Hung arian ▁film ▁the or ist ▁Bé la ▁Bal áz s , ▁who ▁described ▁silence ▁as ▁" one ▁of ▁the ▁most ▁dram atic ▁effects ▁of ▁the ▁sound ▁film ". ▁The ▁film ' s ▁use ▁of ▁silence ▁is ▁partly ▁derived ▁by ▁Kim ' s ▁experiences ▁in ▁Paris , ▁France , ▁where ▁he ▁learned ▁to ▁understand ▁other ▁people ▁by ▁obser ving ▁their ▁expressions ▁and ▁behavior , ▁despite ▁him ▁not ▁being ▁able ▁understand ▁the ▁French ▁language . ▁In ▁a ▁ 2 0 0 5 ▁interview ▁with ▁Time ▁Out , ▁Kim ▁stated : ▁" I ▁want ▁the ▁audience ▁to ▁watch ▁the ▁characters ▁more ▁closely ▁by ▁reducing ▁the ▁dialog ue ▁as ▁much ▁as ▁possible . ▁Most ▁mov ies ▁have ▁too ▁much ▁dialog ue ; ▁I ▁don ' t ▁think ▁words ▁make ▁everything ▁understand able ". ▁▁ 3 -