generate questions: A collector of film memorabilia, Spielberg purchased a balsa Rosebud sled from Citizen Kane (1941) in 1982. He bought Orson Welles's own directorial copy of the script for the radio broadcast The War of the Worlds (1938) in 1994. Spielberg has purchased Academy Award statuettes being sold on the open market and donated them to the Academy of Motion Picture Arts and Sciences, to prevent their further commercial exploitation. His donations include the Oscars that Bette Davis received for Dangerous (1935) and Jezebel (1938), and Clark Gable's Oscar for It Happened One Night (1934).
When was Citizen Kane released? {sep_token} When was 'The War of the Worlds' radio broadcast? {sep_token} When did Spielberg buy a sled from Citizen Kane? {sep_token} When did Spielberg buy Orson Welles' personal script copy from 'The War of the Worlds'? {sep_token} What does Spielberg do with Academy Awards he buys?