Oh, Hi! would make a surefire date flick for seasoned couples who have since shed their desperation for romance. Having that self-assurance would make Sophie Brooks’ off-kilter rom-com much more satisfying. If you’re a couple that is more green, hey, there’s nothing wrong with a film provoking some interesting post-screening chats about comfort and communication over some coffee and pie. Issac (Logan Lerman of The Perks of Being a Wallflower) and Iris (Theater Camp’s Molly Gordon,…