Is any movie sight more incongruously dull than that of amped-to-11 crowds drinking and dancing and losing their minds at a raucous on-screen party? I ponder this every time I yawn during a teen-centric Project X or a “We’re still vital, damn it!” slapstick lament such as the Tina Fey/Amy Poehler Sisters; characters may be having an inhibition-busting ball, but watching them from the immobility of a cineplex seat is a strange and alienating affair. Exactly how are we supposed to react to all these happy lunatics enjoying the techno-thumping, strobe-flashing times of their lives? By punching our fists in the air and shouting, “F--- yeah!!!”? By whipping out our own Jell-O shots and Slip N Slides? By smiling politely, chuckling occasionally, and kind of wishing we were anywhere else instead?