Whether it's HD re-masterings of old favourites for a much-requested Blu Ray release, fan-made remakes through careful editing, or a post-production 2D-to-3D conversion (most recently seen in the likes of Star Wars Episode 1: The Phantom Menace and this week's anniversary re-release of Titanic for the big screen), technology is repeatedly bringing new life to some of cinema's most treasured flicks.