The documentary Hannibal At Trasimeno is part of a larger project of scientific popularization related to the Battle of Trasimeno, one of the cruelest and most famous episodes of the Second Punic War. Based on a careful historical reconstruction, the documentary takes the viewer on a fascinating journey through the places and events related to the memorable clash between the Romans and the Carthinaginians on 21 June 217 B.C.E. The reconstruction of the Battle of Trasimeno through the technique called character animation represents something completely new in documentary filmmaking. Using virtual models rather than real scenes and actors, Palma and Vigneri have created video sequences in which all the elements countryside, arms, costumes, movement of crowds of people and of individuals have been recreated combining the quality of the image rendering with accuracy for historical detail.