Family films abound this holiday weekend, and Hollywood is hoping flicks for the fourth will yield big gains at the box office. Courtney Friel took Molly Line to the movies, previewing the summer's hottest new flicks, including the third installment of "Transformers," Selena Gomez's European vacation in "Monte Carlo,"

Tom Hanks reunion with Julia Roberts in "Larry Crowne," and Pixar's vehicular adventure, "Cars 2."