Gyllenhaal, Jake, 1980- (Personal Name)

October sky, c1999: credits (Jake Gyllenhaal; actor)

Internet movie database, Oct. 11, 1999: (Jake Gyllenhaal; Jacob Gyllenhaal; b. 1980)

Jake Gyllenhaal, c2008: ECIP t.p. (Jake Gyllenhaal) chronology (1980: Jacob Benjamin Gyllenhaal is born on December 19 in Los Angeles)