Conversation so far:
What kind of hobbies does Steven Spielberg have?
Steven Spielberg hobbies include being a collector of film memorabilia, Spielberg purchased a balsa Rosebud sled from Citizen Kane in 1982.
Did Steven Spielberg purchase any other film relics besides a balsa Rosebud sled from Citizen Kane in 1982?
Steven Spielberg bought Orson Welles's own directorial copy of the script for the radio broadcast The War of the Worlds in 1994.
What other film memorabilia does Steven Spielberg own besides Orson Welles's own directorial copy of the script for the radio broadcast The War of the Worlds in 1994?
Steven 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.

Question: Does he have any other hobbies?
Self-contained rewrite: Does Steven Spielberg have any other hobbies besides being a collector of film memorabilia?