Do we have a battle of the Barbie movies on our hands? A biopic titled Dream Doll based on the life of Ruth Handler, the founder of Mattel and creator of the iconic Barbie doll, is in the works. This is now the second film touching on the world of the Barbie doll, the first film being a movie about a Barbie doll come to life starring Margot Robbie. Per Variety, the biopic Dream Doll will cover high points in Handler's life including her founding the toy company Mattel in 1945 and inventing the now-famous Barbie doll, named …