cast(s): Dan Aykroyd , John Candy , Richard Dreyfuss , Bob Gale , Kathleen Kennedy , Frank Marshall , Jake Steinfeld , Robin Williams , Robert Zemeckis , Christian Bale , Drew Barrymore , Paul Bartel , Tony Bill , Paul Campanella , Allen Daviau , Michael J. Fox , Bill Gains , Bill Gates , Whoopi Goldberg , Amy Irving , Michael Jackson , George Lucas , Penny Marshall , Heather O'Rourke , Chris Pischke , Sid Sheinberg , Barry Sollenberger , Jim Sollenberger , Anne Spielberg , Arnold Spielberg , Leah Spielberg ,