Conversation so far:
When did act 1 start?
Frank Butler, the show's handsome, womanizing star ("I'm a Bad, Bad, Man"SS), challenges anyone in town to a shooting match.
How long was Act 1?
CANNOTANSWER.
Are there any other interesting aspects about this article?
When Wilson learns she's a brilliant shot, he enters her in the shooting match against Frank Butler.
Who wins the match?
She wins the contest.

Question: who is Frank Butler?
Self-contained rewrite: Who is Frank Butler in Annie Get Your Gun?