Pig makes Julia Roberts cry

Julia Roberts was brought to tears when she caught her first glimpse of Australian film, Charlotte's Web.

Roberts, who will voice Charlotte the spider in the partly animated film being shot in rural Victoria, had a sneak peek at some early footage last week in Lost Angeles.

Roberts, who gave birth to twins last November, was emotionally moved when she saw a scene involving Wilbur the pig.

Other voices for the film are provided by Robert Redford, Oprah Winfrey, John Cleese, Jennifer Garner, Reba McEntire and Kathy Bates.