Conversation so far:
What kind of hobbies does Steven Spielberg have?
A collector of film memorabilia, Spielberg purchased a balsa Rosebud sled from Citizen Kane (1941) in 1982.
Did he purchase any other film relics?
He bought Orson Welles's own directorial copy of the script for the radio broadcast The War of the Worlds (1938) in 1994.
What other film memorabilia does he own?
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: Besides collecting film memorabilia does Steven Spielberg have any other hobbies?