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American filmmakers Steven Spielberg (left) and George Lucas discuss an unspecified script in the offices of Amblin Entertainment on the Universal Studios backlot, Universal City, California, May or June, 1985. (Photo by David Hume Kennerly/Getty Images)

American filmmakers Steven Spielberg (left) and George Lucas discuss an unspecified script in the offices of Amblin Entertainment on the Universal Studios backlot, Universal City, California, May or June, 1985. (Photo by David Hume Kennerly/Getty Images)

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HOLLYWOOD, CA - JUNE 09: (EDITOR'S NOTE: Image has been converted to black and white.) Directors Steven Spielberg (L) and George Lucas arrive at American Film Institute's 44th Life Achievement Award Gala Tribute to John Williams at Dolby Theatre on June 9, 2016 in Hollywood, California. 26148_002 (Photo by Mike Windle/Getty Images for Turner)

HOLLYWOOD, CA - JUNE 09:  (EDITOR'S NOTE: Image has been converted to black and white.) Directors Steven Spielberg (L) and George Lucas arrive at American Film Institute's 44th Life Achievement Award Gala Tribute to John Williams at Dolby Theatre on June 9, 2016 in Hollywood, California. 26148_002  (Photo by Mike Windle/Getty Images for Turner)

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Martin Scorsese with the Oscar for Best Director for "The Departed" in the press room with presenters Francis Ford Coppola, Steven Spielberg and George Lucas at the 79th Annual Academy Awards�� held at the Kodak Theatre. (Photo by Frank Trapper/Corbis via Getty Images)

Martin Scorsese with the Oscar for Best Director for "The Departed" in the press room with presenters Francis Ford Coppola, Steven Spielberg and George Lucas at the 79th Annual Academy Awards�� held at the Kodak Theatre. (Photo by Frank Trapper/Corbis via Getty Images)

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HOLLYWOOD, CA - JUNE 09: (L-R) Filmmakers Steven Spielberg, George Lucas, and J.J. Abrams attend American Film Institute's 44th Life Achievement Award Gala Tribute to John Williams at Dolby Theatre on June 9, 2016 in Hollywood, California. (Photo by David Livingston/Getty Images)

HOLLYWOOD, CA - JUNE 09:  (L-R) Filmmakers Steven Spielberg, George Lucas, and J.J. Abrams attend American Film Institute's 44th Life Achievement Award Gala Tribute to John Williams at Dolby Theatre on June 9, 2016 in Hollywood, California.  (Photo by David Livingston/Getty Images)

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Japanese film director Akira Kurosawa (C) with his Lifetime Achievement Oscar at the 62nd Academy Awards Ceremony. With him are American directors Georges Lucas (L) and Steven Spielberg (R). (Photo by CHRISTOPHE D YVOIRE/Sygma via Getty Images)

Japanese film director Akira Kurosawa (C) with his Lifetime Achievement Oscar at the 62nd Academy Awards Ceremony. With him are American directors Georges Lucas (L) and Steven Spielberg (R). (Photo by CHRISTOPHE D YVOIRE/Sygma via Getty Images)