Directed by: Chris Renaud, Kyle Balda
Starring: Danny DeVito, Zac Efron, Ed Helms, Taylor Swift
Trivia: When Ted opens a drawer looking for a nail for the Once-ler, a Minion figurine (from Despicable Me) is shown in the drawer.
Trivia: The song 'How Bad can I be?' is perfectly synced with YouTube's 5-second skip with the left and right arrow keys. Watch the song on YouTube and press the right arrow key to skip perfectly from 'bad' to 'bad'.
Continuity mistake: When the Once-ler is drifting down the river in his bed, he puts his foot in the water, which makes the bed turn. When he puts his foot back onto the bed, it is dry and so is the bed sheet.
Once-ler: So you want to know what happened to the trees? I didn't think anybody still cared!
Ted: Well, that's me! The guy who still cares!