Estimated to sell for £60,000-90,000, or about $77,000-$110,000, the typescript was contested by a client represented on the telephone and three bidders in the salesroom. Annamarie V. Sandecki, Tiffany & Co.’s archivist, bidding at the back of the room through unerring nods of her head, was the winner.

“Still today, visitors from around the world travel to our iconic Fifth Avenue flagship to create their own Audrey Hepburn moment in front of the famed Tiffany windows,” said Caroline Naggiar, chief brand officer at Tiffany & Co., in a statement. “‘Breakfast at Tiffany’s’ is such an iconic work in cinematic history, and we’re proud to have secured this important script for our expansive archives as a way to celebrate Tiffany’s popular culture legacy,” Ms. Naggiar added.

The aura of Ms. Hepburn and “Breakfast at Tiffany’s” led to other remarkable results at Christie’s auction. A black and white still from the movie, signed by the actress and her co-star George Peppard, for example, sold to a telephone bidder for £81,250, or about $109,000. It had been estimated at £2,000 to £3,000.