- HD 1080
- Runtime: 79m.
- Status: Released
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- Languages: en
- Country: United Kingdom
- Director: Johannes Roberts
- Stars: David Schofield, Eliza Bennett, Ruth Gemmell, Juliet Aubrey, Roxanne McKee
- keywords: high school, survival, slasher, massacre
- Production_studio: Black Robe, Gatlin Pictures, Capital Markets Film Finance
- Slogan: Welcome to the school of hard knocks
- The F is featured in the top rankings of 2010
- #89 in Top Thriller Movies of 2010
- #28 in Top Horror Movies of 2010
A group of teachers must defend themselves from a gang of murderous kids when their school comes under siege after hours.
