Trivia: The Man as Panda had difficulty breathing after he got outside. He gasped for a while, then started to breathe through his mouth and was OK. The significance of this "cat turns into man" scene is that cats are "obligate nasal breathers" (automatically breathe through their nose) whereas humans can choose their nose or mouth. Cats can also breathe through their mouth, but it is a sign that something is wrong (overexertion, difficulty breathing, or other medical problem) = Get Cat to a Vet.
Trivia: The Mermaid spit "ink" at Dr. Beyer in his car. This suggests a Mermaid is similar to an octopus, squid, or cuttlefish (which have "ink sacs" - though anal, not oral!) and is a type of mollusk, not fish. However, mollusks are invertebrates, and the Mermaid in the movie apparently had a spine/backbone. (01:13:28)
Trivia: Stay for hilarious outtakes after the credits with Eryka Badhu giving psychic feedback.