41st Academy Awards
"Oliver ! " is the only Best Picture winner to receive a G-rating prior to winning the award ( several earlier Best Picture winners have received this rating retroactively ) , as well as the last British film to win Best Picture until "Chariots of Fire" in 1981 and the last movie musical to win until "Chicago" in 2002 . 
<triplet> Chariots of Fire <subj> Best Picture <obj> award received <triplet> 1981 <subj> 1981 <obj> awarded for period <triplet> Chicago <subj> Best Picture <obj> award received <triplet> 2002 <subj> 2002 <obj> awarded for period