▁foot age ▁shot ▁by ▁the ▁astr onaut s ▁that ▁was ▁compar able . ▁The ▁" E arth ▁Po em " ▁sequence ▁was ▁composed ▁of ▁Hass el bl ad ▁still s ▁of ▁the ▁Earth ▁taken ▁by ▁astr onaut s ▁on ▁previous ▁miss ions , ▁and ▁sent ▁to ▁an ▁optical ▁house ▁to ▁create ▁very ▁slow ▁moves ▁across ▁the ▁surface . ▁ ▁The ▁animated ▁explanation ▁for ▁how ▁the ▁Apol lo - S at urn ▁ro cket ▁was ▁put ▁together , ▁how ▁it ▁function ed ▁and ▁how ▁each ▁exp ended ▁piece ▁was ▁left ▁behind ▁leaving ▁only ▁the ▁Command ▁Module ▁to ▁pl um met ▁back ▁to ▁Earth , ▁was ▁intended ▁to ▁look ▁like ▁simple ▁computer ▁animation . ▁In ▁ 1 9 7 0 ▁even ▁the ▁simplest ▁computer ▁animation ▁was ▁so ▁expensive ▁and ▁time ▁cons uming ▁to ▁do ▁that ▁it ▁was ▁far ▁che aper ▁to ▁do ▁cell ▁animation , ▁where ▁each ▁image ▁was ▁drawn ▁on ▁a ▁clear ▁ac et ate ▁just ▁like ▁Mic key ▁Mouse ▁cart o ons . ▁The ▁ 2 0 1 9 ▁document ary ▁Apol lo ▁ 1 1 ▁pays ▁hom age ▁to ▁Moon walk ▁One ▁by ▁re - using ▁the ▁designs ▁for ▁the ▁animated ▁space craft ▁in ▁genu ine ▁computer ▁anim ations . ▁ ▁Music ▁and ▁sound ▁effects ▁The ▁composer ▁selected ▁for ▁Moon walk ▁One ▁was ▁Charles ▁Mor row , ▁who ▁had ▁developed ▁a ▁reputation ▁for ▁very ▁flexible , ▁avant ▁gar de , ▁and ▁stir ring ▁compos itions ▁by ▁the ▁late ▁ 1 9 6 0 s . ▁For ▁the ▁" E arth ▁Po em