Mischa Barton filed suit Tuesday against her mother, Nuala Barton, claiming she's withheld her daughter's career earnings and otherwise exploited her fame. The complaint, filed in the Los Angeles Superior Court, reads like a soap opera: "This action arises from the tragic tale of a greedy stage mother posing as a talent manager who, instead of acting in the best interest of her daughter/client, schemed to defraud her unsuspecting victim."