The great directors tend to have their great muses: Scorsese has the mob, Leone had the American West, De Palma has Hitchcock. For Sean Baker, his greatest artistic muse is the world’s oldest profession. Or, perhaps more accurately: sex work in all its many forms. This isn’t an entirely new observation, nor is it meant to be reductive. Baker’s work—which includes Tangerine, The Florida Project, and Red Rocket—is dripping with empathy for its characters.