The Quatermass Xperiment (1955) is a film adaption out of many based on the BBC TV series. The show, written by Nigel Kneale, centered around Professor Bernard Quatermass as he battles sinister alien forces that threaten humanity.
The film starts of with the return of a space ship which was sent into space with three astronauts in it. Upon arrival it is discovered that only one crew member has survived and the other two have disappeared.
The remaining crew member Carroon, although alive appears ill. Things appear slightly off about the character as the Doctor continuously points out the change in the man's anatomy. Part of his cheek bones are different and in the wrong place, as if the man has changed his appearance. It is later revealed that something attacked the crew whilst in space and has taken control off Carroon. For the duration of the film Carroon undertakes the power to absorb any living thing he touches, slowly mutating beyond recognition.
I rather enjoyed the film, as the action started straight away. Although for some reason I found that the realness of Carroon's mutation really gave me the creeps. I wouldn't mind watching the original TV series and at least one of the re makes just to be able to compare them.