The 27th Day is a 1957 Cold War science fiction B-movie. However, don’t let the B-movie label turn you off. I think it’s quite good. It features an intelligent script and good acting. It's difficult to find it on Region 1 DVD. However, it has recently been uploaded to YouTube. I don’t know how long it will be there before it gets yanked, so you may wish to download it. The screenplay is by John Mantley, who adapted it from his novel. It stars Gene Barry. The actor with the great voice who plays the alien is Arnold Moss. He...