I just thought it was kind of silly at times. When one of the aliens is sporting a propeller hat and is obviously the nerdy one, I stopped taking it seriously.
Huh? Why was he "obviously the nerdy one"?
The propeller hat was used to show that the aliens had little to no idea of Earth culture, they would wear anything, even if it was as ridiculous (to us) as a propeller hat. It's like when you see a Homeless person with a Windows 98 shirt or something on... you don't look at the guy and say "what a nerd".
Sure, they put the hat on a character we're not supposed to take as seriously, but that's because it wouldn't have gotten away with putting it on the main alien.
And, I was mostly messing around with listing what will be remembered in 20 years and didn't mean for it to turn into such a silly argument.