1984 Comedy Spy Film Starring Val Kilmer

Puzzle 15 of Working From Home Pack

Question is: 1984 Comedy Spy Film Starring Val Kilmer

and the answer is: TOPSECRET

Word Meaning:

TOP SECRET — (military, government) Information classified at one of the highest levels of sensitivity by a government, based on an assessment that it would cause exceptionally grave damage to national security if disclosed.

Definitions from Wiktionary.