Longest continuous steadicam shot

The longest continuous shot using a steadicam system lasts for 96 minutes, and is featured in Russian Ark (2002), directed by Alexander Sokurov (Russia). More specifically, the longest steadicam shot *is* the film: the movie features a cast of over 2,000 actors, including 3 orchestras and consists of a single shot moving through the Winter Palace in St Petersburg, Russia, telling the story of 300 years of Russian history.