Madison Pettis may have manifested a potential shot at portraying Mariah Carey on the big screen amid rumored biopic.

Former child actress Madison Pettis is down to portray Mariah Carey in a potential biopic if the opportunity comes her way.

Madison Pettis -- the child star from "The Game Plan" -- is all grown up and shooting her shot for a biopic role that could be a total game-changer ...