Josh Hartnett is a movie director.
Joshua Daniel `` Josh '' Hartnett ( born July 21 , 1978 ) is an American actor and movie producer . He starred in the Brian De Palma -- directed neo-noir crime thriller The Black Dahlia ( 2006 ) . Wicker Park is a 2004 American psychological drama/romantic mystery film directed by Paul McGuigan and starring Josh Hartnett , Rose Byrne , Diane Kruger and Matthew Lillard .