Can you say what the importance of being Earnest is? Can’t you? So cannot many people that do not know the hidden meaning in the Oscar Wilde’s play’s, The Importance of Being Earnest, main plot. Oscar Wilde is one of the most polemic writers of the last years, and this play is one of the most recognized of all his works. Nevertheless, few people really get to realize what Wilde really wants to express between the lines of Earnest’s words, which turns to be a reflection of the socio-cultural context he was living in. The Importance of Being Earnest is a theatrical play that emphasizes the hypocrisy of people who are forced to live between different social classes. In the beginning, Oscar Wilde subtitled his play as “A serious play, for trivial people”; however, he suddenly changed it, with no apparent reason, for: “A trivial play, for serious people”. Here is where the question appears, what did move him, in order change that subtitle? There can be vast possibilities that explain this unusual phenomenon. Consequently, the objective is to prove that the first subtitle is better and to expose objectively the reasons why it is true, and why Oscar Wilde did change it. Before the discussion starts, it is useful to know the background in which Oscar lived. Because all his suffering, Oscar Wilde uses his skills to criticize the world he lived in as a way to escape from reality and become a fiction.