No grand romantic gesture goes unpunished. It isn’t a saying but perhaps it should be if we take a cue from the start of the PG-rated romantic comedy “ Solo Mio ” — starring Kevin James . James’s Matt is a fourth-grade art teacher, smitten with Heather (Julie Ann Emery), a fellow teacher. A video montage, scored to Ed Sheeran’s sentimental ballad “Perfect,” depicts their courtship. For all the celebratory footage of the happy couple, ending with a clever proposal, things aren’t, well, perfect.