cer ▁Robert ▁St ig wood ▁commission ed ▁the ▁Be e ▁Ge es ▁to ▁create ▁the ▁songs ▁for ▁the ▁film . ▁The ▁brothers ▁wrote ▁the ▁songs ▁" virt ually ▁in ▁a ▁single ▁week end " ▁at ▁Ch âteau ▁d ' H ér ou ville ▁studio ▁in ▁France . ▁Barry ▁Gib b ▁remembered ▁the ▁reaction ▁when ▁St ig wood ▁and ▁music ▁super visor ▁Bill ▁O akes ▁arrived ▁and ▁listened ▁to ▁the ▁dem os : ▁ ▁Bill ▁O akes , ▁who ▁super vised ▁the ▁sound track , ▁as ser ts ▁that ▁Saturday ▁Night ▁F ever ▁did ▁not ▁begin ▁the ▁disco ▁cra ze ▁but ▁rather ▁prolong ed ▁it : ▁" Dis co ▁had ▁run ▁its ▁course . ▁These ▁days , ▁F ever ▁is ▁cred ited ▁with ▁kick ing ▁off ▁the ▁whole ▁disco ▁thing — it ▁really ▁didn ' t . ▁Tr uth ▁is , ▁it ▁bre athed ▁new ▁life ▁into ▁a ▁genre ▁that ▁was ▁actually ▁dying ." ▁ ▁Three ▁Be e ▁Ge es ▁singles — " How ▁Deep ▁Is ▁Your ▁Love " ▁( US ▁No . ▁ 1 , ▁UK ▁No . ▁ 3 ), ▁" St ay in ' ▁A live " ▁( US ▁No . ▁ 1 , ▁UK ▁No . ▁ 4 ) ▁and ▁" N ight ▁F ever " ▁( US ▁No . ▁ 1 , ▁UK ▁No . ▁ 1 ) — chart ed ▁high ▁in ▁many ▁countries ▁around ▁the ▁world , ▁launch ing ▁the ▁most ▁popular ▁period ▁of ▁the ▁disco ▁era . ▁They ▁also ▁p enn ed ▁the ▁song ▁" If