What is your Favorite SCI-FI movie? ...and Why?

My FAVORITE Science Fiction movie would haft to be Blade Runner, with a Close 2nd place for Forbidden Planet!

The reason behind this choice is due to Origionality! It set the Stage for Hard Core sci-fi fans, and a Style that has influenced, been copied, and borrowed Many Times Over from those films that followed.

SYD MEAD Played a Big Role in helping Ridley Scott set this CyberPunk / Dystopian stage of Dystant-yet near Future Off World!