Choose detention over this one.

Rating: 5/10 (1 July 2011)

It's a long 92 minutes with this one gag movie. Think "Bad Santa" teaches high school.
Too much of the time you feel the hand of the writer. Start with character names Amy Squirrel and Principal Snur.
The motivation of the bad teacher to become the good teacher rings false when she changes her mind in a no twist, twist. Falling for the gym teacher wasn't going to happen but the writers forced it. The conversation about four dogs may have made for a funny scene but it was only conversation, unless something was left on the cutting room floor.
The target audience of high school boys should not be allowed in the theater because of the "R" rating earned mostly for foul language. My advice, ditch school.