instant Rashomon Effect of light and shadow

This is such an outdated discovery, but I found that Fujifilm Natura 1600 color negative film has two different ISO emulsions on one surface of film.  It has both ISO 400 sensitivity emulsion besides ISO 1600 sensitivity, so if I shoot at 400, the image becomes predominantly over exposed by ISO 1600 emulsion, yet with enough details and color by ISO 400 emulsion.  This is an easy solution to get high key mesmerizing impression.  This could also be a solution to combine Dutch light impression and Giorgio de Chirico kind of high contrast light impression into one.