* ActorAllusion: Creator/DanAykroyd plays Lucy's neuro-physician, who mentions that their clinic is funded by TB Callahan in Sandusky, Ohio, [[Film/TommyBoy yes, he'd know all about that.]]
* CaliforniaDoubling: Mostly averted: While most of the movie was filmed in Hawaii, a couple (such as the walrus tank scene) were filmed in California.
* DyeingForYourArt: Rob Schneider gained weight and underwent a makeover to become nearly unrecognizable as Ula.
* PlayingAgainstType: Creator/RogerEbert goes to great lengths in his positive review mentioning how likable Adam Sandler ends up being due to not being the Sandler role of a manchild, someone with anger issues, and/or someone with an annoying lisp.
* ThrowItIn: The penguin wasn't supposed to close the gate twice. That was a mistake, but the filmmakers left it in for humour.