Ok, one thing I'm beginning to hate about zombie films is the "hipster" element that has crept in. A lot these films now acknowledge that at least one character has seen every zombie film ever and knows everything there is to know about zombies. It can be a bit funny but it is playing itself out as it takes the horror out of things when a character says something, "Oh yeah these are fast type zombies like in 'Ghoul Racers,' so we should have a smash and grab strategy." It goes straight from horror to D&D.
Detention of the Dead has two characters of this stripe a nerdy kid and a gothy nerdy kid. They are in detention with a cheerleader, two jocks, a pothead, and victims. I say victims because yes for reasons unexplained a zombie invasion starts at the school. Clearly out numbered by brain dead students they go to the one place students (zombie or otherwise) never go; the library. Yeah that's about the height of humor here. The horror is about b level. The characters are basically cribbed from "The Breakfast club" brought slightly up to date. It's not a horrible film, but it's no 'Shaun of the Dead' either.