I hope it gets a whole nother season.



When the Doctor was talking to little Amelia as she slept, after his past self had scampered off. He told her about the TARDIS, how she would remember it and dream about it. He said the box was big and small, old and new. He told her he had stolen it, and then amended to say that he had borrowed it really, he meant to bring it back. He described it as being the bluest blue you could imagine.

Basically, he planted all the wedding tradition notions into her head regarding the TARDIS, so that they would unlock on her wedding day if she thought about it just right (and that was the best day for it to unlock, because when the universe was restored Amy was returned directly to the night before her wedding, meaning the hidden memories would be freshest.

He knew there was a chance it would work, too, as evidenced by the fact that he was dressed up and ready for a wedding.



She must have taken it off at some point. It seemed to have been sitting on the ground outside the Pandorica. I don't remember her taking it off, but she wasn't wearing anything like that in the TARDIS.