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- There are several shots used where Sulu is on the bridge, while at the same time he is down on the planet with Doctor McCoy.
- A shot of Uhura sitting by the pond shows her reflection without the Starfleet insignia on her uniform.
The article states that the Queen of Hearts is from Through the Looking Glass, but she's actually from Alice's Adventures in Wonderland. Either Spock made a mistake, or the article's author did 18.104.22.168 04:21, July 11, 2011 (UTC)
It's Spock who made the mistake. He says "The Queen of Hearts and her cards are characters from Alice Through the Looking Glass, Captain." I guess his Vulcan precision wasn't working that day :) Trek history (talk) 06:42, April 7, 2014 (UTC)