@salima,
Wow. Is it possible that I have read the whole thread and missed mention of the talents of Darren Araonofsky, Francis Ford Coppola and Andrei Tarkovsky?
First off, Araonofsky's
The Fountain is probably one of the most strikingly beautiful films that I have and will ever see. His directing is pure class, and manages to weave three narratives of differing time and location in with ease. There is constant leitmotifs of rings and gold. The visuals of the future plot are amazing, and done mostly without the benefit of CGI. Most may know of Araonofsky's work on
Requiem for A Dream, but this movie blows that one out of the water.
Coppola's
Apocalyspe Now is less of a movie and more of an experience. One that of course takes you down to the very core of man, and what lies within. I think it encaptulates perfectly Joseph Conrad's novella
Heart of Darkness and questions american involvement in the Vietnam War. The journey up river to kill Kurtz shows the Willard and the crew at their most human, thrown into a world of violence and confusion, suffering from depression and coping with the moral complexities of war.
Tarkovsky's
Stalker is also existentially brilliant. It really is a film I struggle to put into words. I really need to see it again.