TASK DEFINITION: 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.
PROBLEM: Category: BALLET 
Clue: "Filling Station" features dancing truck drivers & this 1930s dance whose name is New York City's nickname

SOLUTION: the big apple

PROBLEM: Category: THE STARS 
Clue: This star bought the island of Teti'aroa which he'd seen while filming a 1962 motion picture

SOLUTION: marlon brando

PROBLEM: Category: A CELTIC CATEGORY 
Clue: Celtic independence on the European continent came to an end with this leader's 58 to 51 B.C. conquest of Gaul

SOLUTION:
julius caesar