Jacob Benjamin Gyllenhaal was born in Los Angeles, to producer/screenwriter Naomi Foner
(née Achs) and director Stephen Gyllenhaal
. He is the brother of actress Maggie Gyllenhaal
, who played his sister in Donnie Darko
. His godmother is actress Jamie Lee Curtis
. His mother is from a Jewish family, and his father's ancestry includes Swedish, English, and Swiss-German...