Keaton, known for the films "The Godfather" and "Annie Hall", died of pneumonia in October last year.
Four auctions in New York and Los Angeles are offering the public the opportunity to buy some of Keaton's personal belongings, The Guardian reports. Among them is the untitled original script for the 1977 film "Annie Hall," for which Keaton won an Oscar for best actress.
In addition to her career as an actor and director, Keaton also designed clothing and home furnishings.
