Trivia / Doctor Who S33 E13 "The Name of the Doctor"
All There in the Script: According to Alex Kingston, in the script for the episode, the stage directions for the sequence in which River was to slap Vastra ended with "Good luck, Neve!", referring to the actress who played Vastra. Sure enough, an outtake from the scene shows Kingston giving Neve McIntosh a slap that leaves the actress looking stunned.
Do Not Do This Cool Thing: Behind the Scenes example: Matt Smith relates that he and Jenna Louise-Coleman were told not to swing on the bars during the TARDIS's fall to Trenzalore. So what does Matt Smith go and do? Swing on the bars during the TARDIS's fall to Trenzalore.