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.

[EX Q]: Category: SIBLING REVELRY 
Clue: Dingane became King of the Zulus in 1828 after taking part in the murder of this king, his own brother
[EX A]: shaka

[EX Q]: Category: ACCORDING TO JIM 
Clue: A humorist: "Every person carries... the... scar, or the fresh wound, of some harrowing misadventure with a contraption"
[EX A]: james thurber

[EX Q]: Category: HOLLYWOOD LINGO 
Clue: A TV image that retains big-screen proportions is called this, maybe because it's like looking through a mail slot
[EX A]:
letterboxing