D MINUS, SEE ME AFTER CLASS, CONTAINS SOME SPOILERS
I don't generally do comedy. Even limited exposure to the senseless shouting of Will Ferrell, or the stoner/slacker dudery of Seth Rogen, has left the idea of modern mainstream American dimwit comedy entirely moribund and ghastly, even given my tin humerus for things that  are clearly meant to be hilariously funny and  lots of people hoot themselves hoarse at. Still, it's always good to poke your head round the door from time to time to see if things have picked up, be it the dreaded found-footage horror genre (at the last inspection, they hadn't) or, in this instance, the knuckle-headed high concept festival of mirth and japery that isn't Fist Fight.
Nope, things haven't improved here either, with a film as witless, charmless and utterly infantile as you couldn't imagine. It's the last day of the academic year at the roughest inner city high school in town, with many of the already demoralised staff fearing for their jobs in the face of budget cuts and the students celebrating the end of their education by pranking everybody and everything in sight. Small wonder that ball of anger history teacher Ice Cube snaps and smashes a desk with a fireaxe; less reasonable is his challenging hapless English teacher Charlie Day to a fist fight in the car park after school, like they're twelve.
There might possibly be some mileage (or inchage, anyway) in the idea of a high school where the grown-ups revert to a pre-teen state of stupidity while the students look on in bewilderment and disappointment. But that doesn't work when the kids behave like imbeciles and the staff behave like even bigger imbeciles: the film just passes straight through the event horizon of imbecility into a imbecile black hole that leads to an alternative universe made entirely of imbecilium. Sure, there's a shoehorned hint of social comment about how teachers should be valued and respected in an education system that's more interested in slashing costs and firing experienced staff to boost private corporate revenue, but it's lost in the stupidity, the inappropriate teacher-student sex fantasies, the perpetual comedy gold of drugs and masturbation, the inclusion of Tracy Morgan and a scene in which Day and his daughter perform a sweary rap song to win her talent show, because absolutely nothing on Earth or anywhere else is as intrinsically hilarious as a ten-year old girl repeatedly singing the line "Bitch I Don't Give A F*** About You".
Because that's what we've come to. Look, it's clearly not funny (there was some audible giggling from the back row of Screen 6, but no apparent reason for it), it makes absolutely no sense on any level and there isn't even any suggestion that this seemed like a good idea when they started it. It's not actively offensive, it's just offensively stupid and, like an entirely redundant simile, we could probably manage without it. My fault, my ticket - it's my own time I wasted.