When I coined the term “Manic Pixie Dream Girl” in an essay about the movie “Elizabethtown” in 2007, I never could have imagined how that phrase would explode. Describing the film’s adorably daffy love interest played by Kirsten Dunst, I defined the MPDG as a fantasy figure who “exists solely in the fevered imaginations of sensitive writer-directors to teach broodingly soulful young men to embrace life and its infinite mysteries and adventures.”That day in 2007, I remember watching "Elizabethtown" and being distracted by the preposterousness of its heroine, Claire.