- Base-Breaking Character: This episode fully cemented River Song as being an extremely polarizing character (after she was already shown as one in the mid-season finale). Was she an utterly broken Woobie, Destroyer of Worlds whose desperate attempts to rescue the Doctor from his apparent fate were a heart-wrenching Act of True Love, or a Brainwashed and Crazy Stalker with a Crush who willingly endangered the entire universe (thereby going against everything the object of her affections stood for) and not only had what would usually be a Moral Event Horizon within the context of the series be merely brushed over, but essentially had her get away with everything she wanted, thus turning her into a Karma Houdini? Interestingly enough, the scrutiny kicked up again after "Hell Bent", where the Doctor's own attempts at doing something similar (that is, subverting a fixed point in time in order to save someone he loved) get him a massive calling out.
- Nightmare Fuel: The Silence clinging to the ceiling in packs- again.
- In previous episodes featuring the Silents, we'd often see the interaction with them before the character turned away and forgot about it. This time around, we see mounting evidence between cuts that they have been dealing with them repeatedly during a single scene (the Doctor's rapidly increasing tally marks, Churchill and the Doctor both suddenly having weapons in their hands, etc.) Does that mean the scene was filmed so that the Silents just never appeared until the end of it, or were their appearances filmed and the audience just forgot?
- Unintentionally Unsympathetic: River Song, as seen above. She's clearly meant to come off as a Woobie, Destroyer of Worlds. However, her actions directly threaten every single being in the universe (including her parents, who were right there with her). River doesn't even flinch when this is pointed out to her, and never displays any remorse or apologizes for her actions in this episode.
- What Do You Mean, It Wasn't Made on Drugs?: The opening scene before the credits has dinosaurs in a public park, flying car balloons, classical authors on a talk show, the Holy Roman Emperor in 21st century Britain with the emperor himself being Winston Churchill who has a Silurian for a doctor. What the hell is going on?
YMMV / Doctor Who S32 E13 "The Wedding of River Song"