Plot hole: There's no way that Eddie and Nana left the flooded theater without getting a single drop of water on them. The water flooded up to the ceiling and there's no other way to exit besides the front doors, and Moon's secret exit, which also floods. They do not leave through either way.
Trivia: After the frogs quit the show and Moon tries to ask the Japanese girl group Q-TEEZ to join the show, he tries to speak to them in Japanese. He says: "Anata-da shi. Sugoku kusai yo ashii no tsume, iishoni mitei kusai" Afterwards, they look offended and one of them slaps him before they all run away. To translate, what Moon says roughly translates into: "You are smelly. Like toenails."
Question: In the trailer it shows a pig singing "Bad Romance" by Lady Gaga but this song is not on the soundtrack. Why is that? Also "Anaconda" on the soundtrack is "Oh.My.Gosh" instead of its proper title. Again, why is that? It doesn't make sense for one song to be in the movie but not on the soundtrack and for another song to not have its proper title.