Other mistake: During the song, as the cardboard tree falls, Apple-Jack lifts her hoof in a way it couldn't possibly bend.
My Little Pony: Friendship Is Magic (2010)
1 other mistake in season 4 - chronological order
Starring: Tara Strong, Tabitha St. Germain, Ashleigh Ball, Andrea Libman
The Elements of Harmony (2) - S1-E2
Other mistake: At the end of the episode when Princess Celestia is talking to Twilight Sparkle you can see that Princess Celestia's tail is on top of her leg instead of in-between. It's covering her cutie mark.
Discord: 'What fun is there in making sense?"
Trivia: Pinkie Pie didn't use the trombone to get rid of the parasites. That means she planned for the exact ending. Not unlikely, considering Pinky Sense.
The Elements of Harmony (2) - S1-E2
Question: When Rainbow Dash and Fluttershy are floating with Twilight, Nightmare Moon, (In the form of smoke) floats right in Twilight's face, though she never notices it. Why is that?
Answer: The smoke floats a few feet away from Twilight and close to the camera so you might think that the smoke is right in her face.
Lily Harrison