Australia’s northern-most tropical city of Darwin has a strong presence in the domestic and international touristic imagination as a tropical escape destination – a small city poised on the edge of outstanding natural beauty – yet in national cinematic representations Darwin is often presented as a frontier zone, whether these tropes are pivoted around culture or nature. I would like to take up this idea of the city of Darwin as special and distinctive in the national imaginary that is discernible in recent Australian cinema, an idea that I show extends to the city’s representation in theatre and literature. This paper performs a close textual reading of the city’s recent representation in two high profile Australian feature films, <i>Charlie’s Country</i> (Rolf de Heer, 2013) and <i>Last Cab to Darwin</i> (Jeremy Sims, 2015). These are films that employ compassionate, humanistic themes, each maintaining a strong focus on main characters who find themselves both marginalized and neglected within the broader mechanisms of Australian society: hence each film is simultaneously performing the secondary work of critiquing Australian culture. In both films, I show how the tropical city of Darwin operates as a space of difference, but unlike the contemporary tourism marketing that simplistically brands the region as a “site of desire”, here we find two unique critiques of Australian law and society that work to show the ethical frontiers of legislation and of human sovereignty.