The list of Jewish workers German industrialist Oskar Schindler kept to protect his workforce and their families during the Holocaust inspired Steven Spielberg's moving 1993 film. Schindler's deceptive heroism helped save more than 1,000 Jews during World War Two.
The note was set to go under the hammer after New York-based dealer Gary Zimet claimed to be in possession of the last privately-owned copy of the manuscript.
Zimet alleged the family of Schindler's accountant, played by Sir Ben Kingsley in the film, owned the list for close to six decades before selling it privately to its current owner, who is seeking $2.2 million (£1.4 million) for the item.
But the sale has been thrown into doubt after Schindler's heir, Marta Erika Rosenberg, began legal proceedings to halt the auction, reports the New York Post.
Her lawyer John Gleason says, "She wants it off the market. She doesn't want it sold as a trinket for somebody's bookcase."