At first it was shocking, seeing Ice Cube — once the ”wrong n—- to f— with” — playing babysitter in Are We There Yet?, a cute/crude family flick. But most of us knew Nick Persons, the cuddly buppie who chaperones his crush’s brats from Portland, Ore., to Vancouver, is truer to Cube the husband, dad, and businessman than the menacing gangsta rapper of yore. So what discoveries are left for this rerelease? The EXTRAS include a piddling three-minute sneak peek at the upcoming sequel Are We Done Yet? — which is why we’re back on this road anyway.