Aslan's Country and NarniaFans reported the gag reel. Their source? Family Christian Stores (single DVD and Blu-Ray). I later discovered that this gag reel is also listed on ChristianCinema.com (Blu-Ray) and CatholicMovies.com (Blu-Ray).
Finally, I learned that a Brazilian fan on Twitter claims the gag reel is on a local Blu-Ray, which she didn't buy because of the cost. But she says she may.
@AslansCountry yes, just the ''seasick gag reel'' is on the Blu-ray, I didn't buy. But I will buy at once. The better of Narnia!
So does anyone have the "seasick gag reel" on their copy of the DVD or Blu-Ray? Do they know anyone else who does? Is this extra for real or not?