A coming of age film, it would seem, according to the quickly hardening 21st-century mold, involves a precocious outsider who's able to tell his or her story with all fluidity and style of a novelist. All of this backed up by a perfectly modulated soundtrack of indie rock or nuggets plucked with the utmost discretion from the rock and roll past. Submarine makes no bones about being anything else but a coming of age film. The fact is practically announced in a title card of sorts in which protagonist Oliver Tate (Craig Roberts) proclaims that what follows is his biopic. He also reminds his American audience of the existence of Wales, notes a couple of famous countrymen and women - Tom Jones, of course; Katherine Zeta Jones - and thanks us for never invading his country. Later, somewhere between first heartbreak and post-hearbreak, young Oliver even uses the term, saying, "I...