Cardboard Science: Gill-Man or Astro-Man?

THE CREATURE WALKS AMONG US

Loopy and unjustified, but at least there's some noticeable heart in the third and final chapter of the Black Lagoon trilogy, which is a lot more than you can say about the second.

1956
Directed by John Sherwood
Written by Arthur Ross
With Rex Reason (Dr. Thomas Morgan), Jeff Morrow (Dr. William Barton), Leigh Snowden (Marcia Barton), Ricou Browning (The Gill-Man), and Don Megowan (The... Lung-Man?)

Spoiler alert: high

Cardboard Science: Rock, roll

The Cardboard Science series intends to be a catalog of the science fiction of the past, today.  Science errors will be mocked.  20th century mores will be challenged.  Glories will be recorded.  Films will be, as usual, reviewed.

THE MONOLITH MONSTERS

The writers' lack of access to an encyclopedia, and the abysmal stupidity that issues in its absence, subverts this sci-fi thriller severely.  And yet a no-nonsense running time, some surprisingly suspenseful direction, and a truly unique monster elevate it above the madding crowd.

1957
Directed by John Sherwood
Written by Norman Jolley, Jack Arnold, and Robert M. Fresco
Grant Williams (Dr. Dave Miller), Lola Albright (Cathy Barrett), Les Tremayne (Martin Cochrane), Trevor Bardette (Prof. Arthur Flanders), William Flaherty (Chief Dan Corey), and Phil Harvey (Dr. Ben Gilbert)

Spoiler alert: high