How did they make Lieutenant Dan's legs disappear in Forrest Gump?

Answer 1

He wore special socks that allowed his legs to be removed in editing.

The creators of Forrest Gump hired Industrial Light and Magic (ILM) to digitally remove Gary Sinese's legs using a method called Video Chroma Keying. It is essentially the "green screen" method as used in films like "The Matrix" and "Sky Captain and the World of Tomorrow," but used much more specifically. ILM covered Sinese's legs in socks of a specified green color. These colored pixels are then removed from the picture during post-production, allowing another picture to be inserted in their place; in this case, the background images of whatever was behind Sinese's legs in each shot were inserted.

Answer 2

The short answer is that they covered the bottom half of his legs in a blue fabric and blue-screened them out. The process was a bit more complicated than that makes it sound, but that's the general idea.

Answer 3

The actor's legs were wrapped in blue cloth which does not get picked up on film.

Answer 4

Gary Senise's lower legs were wrapped with a special blue cloth that allowed them to be removed by computer later.

Answer 5

I think by a grenade.

He wore green stockings and they were edited out in post production.

Answer 6

They wrapped them in blue, the camera won't pick up blue so it looks as if his legs weren't there at all.

Answer 7

The artificial legs were strapped on.