Watch Leibnitz' Skull (2012) : Full Movie Online Free The exhibition „Mengele's Skull“ is structured around a specially commissioned book of the same title co-authored by Thomas Keenan and Eyal Weizman. Artist and filmmaker Hito Steyerl has been commissioned to respond to the proposition laid out in this book. Next to major new works by Hito Steyerl, this exhibition presents documentary and source materials.