We reported earlier this month that production is under way on director Christopher Nolan's Interstellar. Despite the secretive nature of the filmmaker's projects, one enterprising YouTube user managed to shoot a three minute video from the set in Okotoks, Alberta, Canada, where you can see the director along with cast members Matthew McConaughey and Elyes Gabel. Of course, there is little we know about the story, so it's difficult to put this footage into context. But you can take a look at the video for yourself and see if you can decipher any clues about this sci-fi thriller that deals with wormholes and time travel.

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