Question: Which important event is associated with the visual artwork that received a Palme d'Or on the date 2009-01-01 and has the release date 2009-05-21?
Choices:
Saudi unification
2009 Cannes Film Festival
Treaty of Jeddah
September 11 attacks
nomination decline
BFI London Film Festival
2009 Toronto International Film Festival
Sundance Film Festival
première
2009 Sundance Film Festival