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: 10-LETTER WORDS 
Clue: It means to set free, as from slavery
emancipate

Category: AMERICAN HISTORY 
Clue: On June 21, 1982 he was found not guilty by reason of insanity in the shooting of President Reagan
john hinckley

Category: A MOVIE BEFORE, THEN DINNER AFTER 
Clue: Charlton Heston goes crazy when he finds out a revolutionary new foodstuff is "haricots verts" in French

soylent green beans