Director David Ayer – the writer of Training Day and Dark Blue – plays the bad-cop blues with another bullet-strewn thriller set in deepest, darkest Los Angeles. Keanu Reeves is Tom Ludlow, a volatile detective implicated in, but determined to solve, the murder of his former partner. Yet while unit captain Forest Whitaker is firmly behind his boy, Internal Affairs bloodhound Hugh Laurie smells a rat. Fantastic Four’s Chris Evans and rappers The Game and Common add meat to a muscular script, co-written by L.A. Confidential author James Ellroy.