- Creator Backlash: Towards the end of his tenure as showrunner, Steven Moffat admitted that he should not have played the scene where Amy tries to seduce the Doctor "for laughs".
- Throw It In!: The Doctor's gesture indicating Rory's long nose wasn't in the script. This two-parter was actually the first episodes filmed, before Arthur Darvill had acted on the show, but after he'd been cast. Smith and Darvill were already old friends, so Smith already knew about Darvill's honker and improvised.
Trivia / Doctor Who S31 E5 "Flesh and Stone"