We’re a tight-knit family - we’ve been together for six years, so there’s always silly time. There are definitely days when Jared in particular will get the giggles, and that spreads through the crew. Something fun did come up during the Fate episode…I was in my apartment on a weekend and flipped on the TV and I saw Misha Collins in a movie called Stonehenge Apocalypse, and I ended up watching the whole thing. So I started asking around, “Did you know that Misha was in this movie?” And nobody knew what the movie was, even though they shot it in Vancouver. So when we shot the scene where Cass saves the guys from Fate and takes them to White Russia, I asked the art department if they could put together a little cut-out Stonehenge. They watched the movie and they had a good old time with it. I was just thinking 2D, but they made a three-dimensional foam Stonehenge about four feet by four feet at the base. The stone themselves were probably about eight or ten inches high. It was a really good replica. So we took it out there and had it under a sheet, and just before we shot the scene, we opened it up - Misha was so stunned. We had the cameras rolling and it’s on the gag reel!
Phil Sgriccia, talking about a funny behind-the-scenes story from season six. (Supernatural Magazine, Issue #27, Sept/Oct 2011)