What does a great mom make? Is it someone who's warm and compassionate but not afraid to tell you to "go bang your head against the wall"? Or is it someone who forces you to confront your own truths with a simple dismissive "mhmm"? Maybe with moms it takes one to know one, so we'll leave the more scientific findings to child-bearing psychologists. While they're busy figuring out the perfect matriarchal formula, we rounded up some of television and film's greatest mother moments.