Muscleman Marc is Marc Jacobs, fashion designer
The episode implies that protests are huge only because the number of media and emergency service staff is far greater than the number of protesters.
"word is that filmmaker Michael Moore has joined the protesters outside." - Michael Moore stopped by OWS on October 15, 2011, to lend his support.
Is Mr. Adler now a vice-principal? He's been with Principal Victoria and Counselor Mackey in two episodes now.
Butters still thinks Skeletor is real, despite evidence to the contrary.
The dialogue in the Basement Tea Party scene is borrowed a bit from the deleted "201" scene.
Movie references: Fatal Attraction and Silence of the Lambs.
Kyle must surely have his development moment soon. Kenny had it in The Coon episodes, Stan had it in "You're Getting Old"/"Ass Burgers," and Cartman had it in this episode. This, and the characters turning 10 and the body shape of the fifth graders may indicate the fourth grade will be going to fifth soon and have bigger bodies and more mature demeanors as a result.