"Rock of Ages": Let your (big) hair down!
Review: If you already know why the hero of the good-natured '80s pop-metal musical "Rock of Ages" is just a city boy "born and raised in South Detroit," and the object of his affection is a small-town is a small-town girl named (Oh!) Sherrie, then this silly return to the decade we'll always (try to) remember is for you. Rating: ***