Julie Delpy Rocks New York

“My son is sick right now, covered in zits. It’s not contagious — I mean, it’s contagious, but don’t worry: Grown-ups don’t catch it. It’s called mouth-foot-and-butt disease or something.” Julie Delpy materializes on the patio of Hollywood’s Chateau Marmont on a wave of nervous energy. Hair pinned up away…