These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Alternative Character Interpretation: Old Lady Hackmore seems to firmly hold the Idiot Ball when she explicitly tells Ernest the incantation to bring Trantor back. However, she later uses the chance to plant the dolls of her sister and friends on Trantor's tree so they can be returned to normal, as they were stuck that way following his original defeat. Was she just taking advantage of this situation following her screwup, or was actually The Chessmaster, intentionally allowing Trantor to be revived in a Batman Gambit that Ernest would defeat him in order to save them all along?
Genius Bonus: If you can manage to stop smirking at Ernest during Ernest's costume-changing pep-talk, you'll realize he's paraphrasing Sun Tsu's The Artof War.
Memetic Mutation: The face Ernest makes at Trantor the troll during their fight (and right after Ernest's "booger lips" line) has become memetic to the point that this movie is the origin of the internet phrase "troll face".
"Authentic Bulgarian Miak" is a bit of a shibboleth for the film's fans.