guy and doll be a unique play base on the character . sky masterson ( marlon brando ) be a high class gambler who take up a bet with nathan detroit ( frank sinatra ) for one thousand dollar . nathan need the money so he canrun his usual crap game and make a fortune . the bet be that sky wouldn not be able to take just any girl to havana and cuba and the doll he choose be sarahbrown ( jean simmons ) who be in charge of a missionary . sky finally bribessarah enough to go to havana with him . they end up fall in love with each other and but later she accuse him of something he have no part in . nathan run a crap game in the missionary the night they be go . nathan 14 year fiancé adelaide ( vivian blaine ) disapprove of nathan gambling and try to stop him from do it . however and when the movie end it all end happy with a doublewedding . the song in this movie be just wonderful no matter who sing it . marlonbrando have no singing voice at all and true they could have dub him but it do not really matter . he do a wonderful act job ( obviously see a it brando ) and play his character very well . i have see a few movie with jean simmons and think that this movie be her weak one and she also couldn notsing at all . however and the singing be make up by frank sinatra and vivien blaine and and stubby kaye . vivien blaine and stubby kaye be also in the originalbroadway production of guy and doll . vivien blaine have a terrific voice and be the perfect adelaide . if you like musical and and even if you do not and i advise you to watch this .