F (also known as The Expelled) is a 2010 British slasher film written and directed by Johannes Roberts, and starring David Schofield, Eliza Bennett, Ruth Gemmell, Juliet Aubrey and Roxanne McKee. It follows a group of teachers who must defend themselves from a gang of murderous youths when their school comes under siege after hours.

F had its premiere at the London FrightFest Film Festival on 27 August 2010, and was released in the United Kingdom on 17 September 2010, by Optimum Releasing.