Detention is a 2003 action film

Action film

Action film is a film genre where one or more heroes is thrust into a series of challenges that require physical feats, extended fights and frenetic chases...

 directed by Sidney J. Furie

Sidney J. Furie

Sidney J. Furie is a Canadian film director. Furie is perhaps best known for directing American Soldiers, The IPCRESS File, The Entity, Superman IV: The Quest for Peace, Lady Sings the Blues, The Boys, Gable and Lombard, Sheila Levine Is Dead and Living in New York and the Iron Eagle films.Also...

. It stars Dolph Lundgren

Dolph Lundgren

Dolph Lundgren is a Swedish actor, director, and martial artist. He belongs to a generation of film actors who epitomise the movie action hero stereotype including Sylvester Stallone, Arnold Schwarzenegger, Bruce Willis, Chuck Norris, Steven Seagal and Jean-Claude Van Damme.A graduate in chemical...

 as a soon to be retired high school teacher Sam Decker who has one last detention to proctor and Alex Karzis

Alex Karzis

Constantine Alexander Karzis is a Canadian film and television actor, voiceover artist, singer, and musician. He was born and raised in Toronto, Ontario....

 as Chester Lamb. Unfortunately, drug runners have chosen to attack the school. Sam must band together the trouble makers and misfits in detention to defeat the criminals and stay alive.
Hamilton High School is no place for a teacher who cares.