Over one intense day, the devoted head teacher of a last-chance reform school strives to keep his students in line while facing pressures of his own.

Cillian Murphy
as Steve

Tracey Ullman
as Amanda

Jay Lycurgo
as Shy

Little Simz
as Shola

Douggie McMeekin
as Andy

Youssef Kerkour
as Owen

Roger Allam
as Sir Hugh Montague Powell

Emily Watson
as Jenny

Archie Fisher
as Posh Cal

Araloyin Oshunremi
as Benny
CinemaSerf
Though Cillian Murphy takes top billing and turns in a visceral effort in the title role, this is really a formidable ensemble effort as he leads a small group to teachers in what seems to be a constant rearguard action with some of the most unruly teenagers you’ll ever see. Helped out by his deputy...