Who wrote the script of Clint Eastwood's movie from 2004, "Million Dollar Baby"?

Explanation

Paul Haggis is one of the most well-respected script writers in Hollywood, but he has also directed several movies himself, notably the Academy Award-winning "Crash" from 2005, which was both a commercial and critical success. Subsequently, he instructed the drama "In The Valley of Elah" (2007) starring Tommy Lee Jones. He has distinguished himself as a script writer with movies like "Million Dollar Baby", "Flags of Our Fathers" and "Letters from Iwo Jimi", all directed by Clint Eastwood.