Does Gary Sinise have fake legs?

Answer 1

No, Gary Sinise does not have fake legs. The character he portrayed in 'Forrest Gump' lost his legs in Vietnam. The filming was done using the green screen technique, in that he acted with his legs covered with a specific shade of green fabric that allowed the computer to erase them in post-production.

Answer 2

No he did not. It was really some expert camera work, and creative design. It was done using the green screen technique, where his real legs were wrapped in green material for most of the shooting.