Gene Wilder's Somersault Entrance

Gene Wilder's Somersault Entrance trivia questions

1. In the 1971 film, who directed Willy Wonka & the Chocolate Factory?
2. In the 1971 film, what is Charlie Bucket's prize after finding a ticket?
3. In the 1971 film, which child actor plays Charlie Bucket?
4. In the 1971 film, where did filming take place?
5. In the 1971 film, during which months was filming done?
6. In the 1971 film, who wrote the original 1964 novel it adapts?
7. In the 1971 film, who did an uncredited rewrite of the screenplay?
8. In the 1971 film, which song became a hit for Sammy Davis Jr.?
9. In the 1971 film, which U.S. institution preserved it in 2014?