You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: PICTURES AT AN EXHIBITION
Clue: His 1960s works include "I Know How You Must Feel, Brad!" & "As I Opened Fire..."
roy lichtenstein

Category: THE TITLE ESCAPES ME
Clue: 3 chimpanzees travel through time to 20th century Earth in the 1971 sequel "Escape From" this place
the planet of the apes

Category: MY CHARLEMAGNE MAN
Clue: For 46 years Charlemagne was the king of these people who gave their name to a country
the franks