3. Blade Runner (1982)

Blade Runner has been released in multiple variations but the Director's Cut is the one I'm specifically referring to here. The story opens as a typical film noir yet it also has the added element of being in a futuristic society that elevates the noir sensibilities to new and interesting heights. The set design and cinematography presented in Blade Runner are simply stunning while the themes that drive the narrative are some of the most complex that cinema has to offer. The film asks us to question what make us human and even presents a human main character who may actually be a replicant, the very thing he is commissioned to kill. Roy Batty, the main replicant, is presented with more human qualities than the hero, Rick Deckard who is generally very stoic and cold to those around him. It's this juxtaposition between the two that makes Blade Runner endlessly re-watchable and still debated to this day.