Despite being one of the most influential forms of media, cinema has yet to be theorized as a communicative institution of the civil sphere. Contrary to commonsense understandings of cinema as a medium for purifying representations of civil sphere ideals, this paper proposes a theoretical framework that opens up the black box of cinematic performance and theorizes processes of civil interpretation and evaluation: the cinematic gap. The cinematic gap describes an experiential space afforded by the medium’s fictional nature. Because cinema is ‘just fiction’, viewers are distanced from the ‘real civil sphere’ and permitted a space for thoughtful rumination on a cinematic performance’s presentation of civil sphere matters that is less reductive, more thoughtful, and more empathetic. As viewers can then apply these insights on the real civil sphere, the cinematic gap provides a space for thoughtful civil engagement and pathways to civil repair. This paper also identifies components of the cinematic gap which determine its ‘size’ – i.e., degree of distancing from the real civil sphere – as genre treatment and grounding in social reality. This theory is generated from responses to the 2019 Korean film Parasite, a highly successful black comedy-thriller that deploys and subverts commentary on class inequality.