Historical Compositing
Digitally placing a fictional character into real archive footage, or blending actors with rebuilt period sets and backgrounds. It looks as if the character was really there in history.
How this film uses it
Visual effects supervisor Ken Ralston inserted Tom Hanks into footage of JFK, LBJ, Nixon and John Lennon. He altered the archive footage so Forrest appears to be speaking directly with historical figures. The technique broke new ground for its time, and it required replacing the mouths of the archive subjects with CGI.
Where to see it
Forrest meeting Presidents Kennedy, Johnson and Nixon. Each time, he is blended seamlessly into the old footage.


















