Abstract: Portrait of a Lady on Fire is a drama film directed by Cline Sciamma and starring Adle Haenel and Nomie Merlant. The film centers on the passionate love story between Heloise, a bride on the brink of marriage, and Marianne, the painter commissioned to create her portrait. This paper analyses the construction and deconstruction of female identity in Portrait of a Lady on Fire through the lenses of gaze theory and feminist identity theory. It begins by exploring Heloise's resistance to the objectifying male gaze, illustrated through her defiance against the passive model identity and her challenge to the myth of Orpheus, which traditionally casts women in powerlessness and rescue role. The paper then delves into the film's critique of the roles of wife and mother within the patriarchal, heteronormative family structure, drawing on Simone de Beauvoir's ideas in The Second Sex to further contextualize the film's feminist discourse. Through these analyses, the paper reveals how the film reimagines and challenges traditional female identities, offering a detailed and subtle portrayal of women's autonomy and identity.