The Interstellar marketing campaign is kicking into high gear today with a new trailer, hot on the heels of this morning’s announcement that the Chris Nolan space drama will get a rare nationwide sneak release on celluloid. Paramount and Warner Bros. have partnered with Google to launch an immersive Interstellar website highlighted by a new third trailer that reveals some inkling of plot for the first time. After hooking Nolan fans with stunning imagery and vague story points in previous promos, the new 2 1/2 minute trailer reveals why astronaut Matthew McConaughey is leaving his family behind to lead a spaceship crew into the final frontier: To save a doomed humanity whose clock is running out back on Earth. The film opens on November 7. Check it out: