This research paper seeks to answer the research question of “what are the implications of actors playing roles with a different sexual orientation to their own?”. To do this the objects of Armie Hammer’s performance as Oliver in Call Me By Your Name, and Rupert Everett’s Performance as Sir Arthur Goring in An Ideal Husband are applied to Sartre’s notion of authenticity and Butler theory of performativity. Sartre’s notion of authenticity is used to assess the implications to the authenticity of an actor’s performance when playing a character with a different sexual orientation to their own. Butler’s theory of performativity is used to assess the implications that performativity has on performances, specifically performances where actors play roles where their sexual orientation is different from the character they play.