…has been played up in the television ads, which seem to be selling the movie as a combination of "Rain Man" and the Woody Allen comedy "Zelig," which also used archival newsreel footage and computer handiwork to give the impression that the lead actor was actually standing next to a famous person.
That's the cinematic formula for "Forrest Gump," which combines the most interesting elements of "The World According to Garp," Woody Allen's "Zelig" and "Being There."
Dustin Hoffman was an autistic savant in “Rain Man.” Woody Allen shared the limelight with famous faces in “Zelig.”
Related to the newsreels in Woody Allen's "Zelig," only much more elaborate and impressive, the effects--created by Industrial Light & Magic--are showstoppers, presenting Forrest convincingly interacting with several Presidents, including John F. Kennedy and Lyndon B. Johnson.
Mixing elements of "Rain Man," "The World According to Garp" and Woody Allen's "Zelig," "Forrest Gump" covers 30 years in Gump's life, and reframes recent history by suggesting that one man can leave his stamp -- through blunders, serendipity and simple good will -- on several key historical moments.
Like Woody Allen's character in "Zelig," Forrest shows up in newsreel and TV footage thanks to technological sorcery, so well and hilariously employed by Zemeckis here.