Francis Ford Coppola Shares Rare On-Set Footage of Robin Williams for 'Jack' 30th Anniversary

Francis Ford Coppola shared never-before-seen footage of Robin Williams on the set of "Jack" in honor of the film's 30th anniversary on Aug. 9. "I loved making 'Jack' and thought it was imaginative and unusual, despite the fact that the theme had been dealt with perfectly in 'Big' by Penny Marshall. And the ending of 'Jack' is very touching," Coppola shared Thursday in a joint Instagram post alongside his American Zoetrope production company. "Robin Williams plays Jack, a 10-year-old boy in a 40-year-old's body," the director continued. "In this rehearsal clip . . .