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 consistency, answers should be in all lower cased letters.

Category: HOLLYWOOD 
Clue: The man seen here didn't wear an undershirt in this 1934 film, setting a trend for decades
it happened one night

Category: GUILTY PLEASURES 
Clue: Trista Rehn was this 2003 TV title person
the bachelorette

Category: THE CIVIL WAR 
Clue: This explorer served on both sides in the war before he went looking for Dr. Livingstone

henry stanley