I’m on board with this in principle — scrappy council-house kid gives stuffy old-rich-gentlemen’s club a kick in the ass is a solid enough baseline for the old-fashioned secret-agents-save-the-world story, and scenes of over-the-top, balletic violence provide an enticing hook. This is also an origin story — the jumping-off point for an obviously hoped-for franchise turning the film’s unknown Welsh star, Taron Egerton, into a street-smart action hero — and so we spend much of the film stuck in spy-school, where director Matthew Vaughn and co-screenwriter Jane Goldman spit up a range of pre-chewed chestnuts from the history of elite-training narratives on film to show how fatherless protag “Eggsy” Unwin (Egerton) earns his super-spy status under the mentorship of the ever-dapper veteran Harry (Colin Firth). It’s not unpleasant, but it doesn’t go anywhere new.