This document discusses how LA Noire portrayed two different versions of Los Angeles: a fictional noir version and a historical open-world version. The fictional version featured a scripted story, cinematic camera angles, and player had no control during cutscenes. The historical version lacked a main story and gave players open-world roaming and control over their character's movements and decisions. It also provides examples of semi-documentary film noirs from the 1940s-1950s that were shot on location and featured elements of newsreels or documentaries to realistically portray cities like Los Angeles, Chicago, New York City, and Washington D.C.