They've Got The "Spirit"
The evening's big winner was the comedy "Little Miss Sunshine" which won four awards.
Winners are chosen by members of the indie film organizations IFP and Film Independent who vote online or by mail.
The event took place in a tent on Santa Monica Beach.
Craig was nominated for best supporting male for "Infamous" but lost to "Little Miss Sunshine" star Alan Arkin.
The late director Robert Altman received an Honorary Spirit Award for his lifelong commitment to independent filmmaking.
Harden was nominated for best supporting female for "American Gun."
Williams was nominated for best actress for "Land of Plenty" but lost to Shareeka Epps.
Wright Penn was nominated for "Sorry, Haters."
Epps won best female lead for her role as a high school student in "Half Nelson" opposite Ryan Gosling, who won best male lead.