Julia Roberts shared a birthday video for her niece, Emma Roberts. Julia shared the clip on her Instagram, featuring the two blowing party horns in slow motion.Emma Watson has a funny response to Emma Roberts mix upEmma Roberts looked beautiful and chic at the premiere of ‘Spencer’A post shared by Julia Roberts (@juliaroberts)Julia’s video features herself and Emma looking straight at the camera. The two are wearing paper hats and are blowing on party horns, all dramatically set to slow motion.