Exam (2009) locks eight candidates in a windowless room with eighty minutes, a question they cannot see, and an invigilator who states three rules and then leaves. Stuart Hazeldine's debut is a single-set psychological thriller that runs entirely on nerve and deduction, with Luke Mably, Colin Salmon and an early role for Gemma Chan. An IFC Films release, not rated, with the theatrical trailer, Region 1.