William Floyd Collins was an American cave explorer, principally in a region of Kentucky that houses hundreds of miles of interconnected caves, today a part of Mammoth Cave National Park, the longest known cave system in the world.

Ace in the Hole, also known as The Big Carnival, is a 1951 American drama film directed by Billy Wilder. The film stars Kirk Douglas as a cynical, disgraced reporter who stops at nothing to try to regain a job on a major newspaper. The film co-stars Jan Sterling and features Robert Arthur and Porter Hall.