‘MARRY ME’ Rated PG-13 for some language and suggestive material. What it’s about: A pop superstar, planning a public wedding, spontaneously marries a milquetoast math teacher when she discovers her fiance’s infidelity. The kid attractor factor: Star Jennifer Lopez may draw a younger crowd. Good lessons/bad lessons: It’s an admirable thing to believe in love, but if you want things to be different, do something different. Violence: None Language: Some adult language/swearing Sex: References to sex but nothing graphic Drugs: None Parents’ advisory: A rather chaste rom-com that deals with adult …