Martin Scorsese designed each year in the film to look just the way a color film from that time period would look. Achieved mainly through digitally enhanced post-production, Scorsese recreated the look of Cinecolor and two-strip Technicolor. Watch in particular for the scene where Howard Hughes (Leonardo DiCaprio) meets Errol Flynn (Jude Law) in the club. Hughes is served precisely placed peas on a plate, and they appear blue or turquoise – just as they’d have looked in the primitive two-strip Technicolor process. As Hughes ages throughout the film, the color gets more sophisticated and full-bodied.
Based on truth (and lies). 