“Santa Girl” (** out of four) was a cloying confection about a high-school girl (Jennifer Stone) who is actually the daughter of Santa Claus (Barry Bostwick) and wants to experience being an ordinary girl before she marries the son of Jack Frost and takes over the family business and things get complicated when she falls in love with a classmate (Devon Werkheiser). Engaging performances do what they can with a silly script and a whopper of a story. Young girls who are the obvious target audience might like this more. Bostwick is ideally cast but disappears from the movie faster than anyone can say shock treatment