Karen Blixen's champagne glass is empty when she slaps a rude man at the New Year's Eve party. Denys takes her arm and pulls her immediately onto the dance floor. When they dance, her glass has champagne in it.
The double-lever, rack-and-pinion "Wing" corkscrew has its origins in H.S. Heely's 1888 British patent on a corkscrew he called the A1 Heeley Double Lever. A version of the corkscrew reached the United States in 1930, but it was widespread in Europe before that.