EARTH VS. THE FLYING SAUCERS
Ray Harryhausen codifies alien invasion cinema with this sub-classic from the middle of the 1950s, tying in everything you thought you knew about UFOs into one spectacular package, gifted with some of the very best special effects of the whole era—though you routinely wish there were a whole lot more of them.
1956
Directed by Fred F. Sears
Written by Curt Siodmak, George Worthing Yates, and Bernard Gordon (based on the book Flying Saucers From Outer Space by Donald Keyhoe)
With Hugh Marlowe (Dr. Russell Marvin), Joan Taylor (Carol Marvin nee Hanley), Donald Curtis (Maj. Huglin), Morris Ankum (Brig. Gen. John Hanley), and Paul Frees (The Voice of the Saucermen)
Spoiler alert: moderate