c ans ▁don ' t ▁cry ,' ▁and ▁I ▁said , ▁' Well , ▁that ' s ▁what ▁makes ▁this ▁such ▁an ▁interesting ▁V ul can .' " ▁The ▁character ' s ▁emot ional ▁out bur st s ▁can ▁be ▁partly ▁explained ▁by ▁the ▁fact ▁that ▁Sa av ik ▁was ▁described ▁as ▁of ▁mixed ▁V ul can - R om ul an ▁her itage ▁in ▁the ▁script , ▁though ▁no ▁indic ation ▁is ▁given ▁on ▁film . ▁Al ley ▁was ▁so ▁fond ▁of ▁her ▁V ul can ▁ears ▁that ▁she ▁would ▁take ▁them ▁home ▁with ▁her ▁at ▁the ▁end ▁of ▁each ▁day . ▁ ▁Production ▁ ▁Development ▁ ▁After ▁the ▁release ▁of ▁The ▁Mot ion ▁Picture , ▁executive ▁producer ▁Gene ▁Rod den berry ▁wrote ▁his ▁own ▁sequ el . ▁In ▁his ▁plot , ▁the ▁crew ▁of ▁the ▁Enter prise ▁travel ▁back ▁in ▁time ▁to ▁set ▁right ▁a ▁cor rupted ▁time ▁line ▁after ▁K ling ons ▁use ▁the ▁Guardian ▁of ▁Fore ver ▁to ▁prevent ▁the ▁assass ination ▁of ▁John ▁F . ▁Kennedy . ▁This ▁was ▁rejected ▁by ▁Param ount ▁execut ives , ▁who ▁bl amed ▁the ▁te pid ▁reception ▁and ▁costs ▁of ▁the ▁first ▁film ▁on ▁its ▁pl od ding ▁pace ▁and ▁the ▁constant ▁re writ es ▁Rod den berry ▁demanded . ▁As ▁a ▁consequence , ▁Rod den berry ▁was ▁removed ▁from ▁the ▁production ▁and , ▁according ▁to ▁Sh at ner , ▁" k icked ▁up st airs " ▁to ▁the ▁cer emon ial ▁position ▁of ▁executive ▁consult ant . ▁ ▁Har ve ▁Ben