If you really think about it everyone we meet in our life has some kind of significance that we don't notice or feel right away. Only because it's not a force field or something physical, its something far more advanced than our minds can understand. So we create movies and show characters that at first seem very unimportant and we think we'll never see them again. Until later on we come to realize they had a very significant meaning in that film but we didn't want to acknowledge it because it was a passing facade that we thought would never mean much....Just like our lives.. and everyone we meet along the way.