The Venusian

A stranger from Venus lands in Britain and forms a bond with a young American woman. He comes with a warning to Earth's leaders that they must eliminate all nuclear weapons if the peoples of the solar system are to survive.

The Venusian is a 1954 sci-fi movie directed by Burt Balaban, starring Derek Bond, Helmut Dantine, Cyril Luckham. It holds an IMDb rating of 5.4/10 from 1,129 votes and runs 1h 15m.