In the film Forrest Gump , Forrest’s comment about the Vietnam War is intentionally silenced during the Washington anti‑war rally, so the audience in the movie never hears it.
What he says in the film’s story
Within the scene, Forrest steps to the microphone and begins, “There was only one thing I could say about the war in Vietnam…,” but the sound is cut when a soldier pulls the cables, so the crowd (and the viewer) hears nothing until he finishes with “…and that’s all I have to say about that.” This choice keeps Forrest’s stance non‑political in the film, focusing more on his innocence than on a detailed critique of the war.
Reported full line (outside the movie’s audio)
Outside the film itself, Tom Hanks and later write‑ups have reported that Forrest’s unheard speech was along the lines that sometimes people go to Vietnam and come home to their mothers without legs, and sometimes they do not come home at all, which is a bad thing, and that is all he has to say about it. This version emphasizes the human cost of the war rather than politics, matching Forrest’s simple, direct way of seeing events.
