Groucho Marx plays an agent called Lionel Q.Deveraux, who only has one client, Carmen Novarro, played by Carmen Miranda.Lionel gets Carmen to perform at a club called Copacabana, but she has to perform there as a Brazilian and as a French singer.It's not so easy.Copacabana is a nice comedy musical with Groucho Marx.The movie offers you some very funny moments, even if it doesn't have the other Marx brothers.