American Experience Films ; written and produced by David Grubin ; executive producer, Mark Samels ; a David Grubin Productions film for American Experience ; WGBH Educational Foundation
written and directed by David Grubin ; produced by David Grubin ; a David Grubin Productions Inc. film for American Experience in association with the BBC
a production of David Grubin productions in association with PBS, Docstar and Devillier Donegan Enterprises ; written and directed by David Grubin ; produced by David Grubin and Allyson Luchak