The Quatermass Xperiment(1955)
Videos: Trailers, Teasers, Featurettes
The first manned spacecraft, fired from an English launchpad, is first lost from radar, then roars back to Earth and crashes in a farmer's field, and is found to contain only one of the three men who took off in it; and he is unable to talk but appears to be undergoing a torturous physical and mental metamorphosis.
The Quatermass Xperiment - watch online: streaming, buy or rent
You can buy "The Quatermass Xperiment" on Amazon Video as download or rent it on Google Play Movies, Amazon Video, YouTube online.