If catching a movie is part of your holiday weekend, here’s a glimpse of what’s new. The world of the Big Top takes on a new adventure when an unexpected romance develops between a veterinary school student and a circus performer. Oscar-winner Reese Witherspoon and Robert Pattinson star in “Water for Elephants.”

 Also, new at the movies is the footage you were never meant to see. “Apollo 18” shows how two American astronauts were sent on a secret mission to the moon and made a discovery that NASA had denied.