<p>This thesis investigates Hollywood and global Hollywood 3D cinema at the height of its box office success, the early fifties, and from 2009-2014. Discourse surrounding 3D cinema in both periods is governed largely by technological and economic arguments. While this discourse holds some merit, it overlooks the cultural and historical background against which 3D cinema rose to prominence.  Shifting research focus from the technological and economic to the cultural, this project uncovers the presence of trauma in 3D cinema of the fifties and D3D of the new millennium, and argues 3D cinema to be a privileged form to engage with traumatic themes. As trauma is uncovered in 3D cinema, connections are drawn between the narratives and poetics of the films discussed and post-traumatic themes prevalent in the US post WWII, and post September 11 respectively.  Focusing on questions of representation, embodiment and temporality, which hold a central role both in 3D cinema and trauma theory, this project finds that 3D cinema narratives and poetics of each period resonated with the cultural trauma that preceded it.</p>