His Golden Eyes reports on a goof on the Breaking Dawn Part 1 dvd/blu-ray:
Thanks to @CupcakeHuman for letting us know about this error in “The Twilight Saga: Breaking Dawn, Part 1″ DVD and blu-ray’s “special features.” You’ll find this at the end of the wedding video feature. Did you catch it? Do you see it?
It’s supposed to be the thirteenth, a month before Bella’s birthday.