Sean Penn and Michael Moore picked up the big prizes at Tuesday's (27Nov07) 17th annual Gotham Awards in New York.
Penn's Into The Wild won best feature and Moore's Sicko - an expose of U.S. healthcare - was awarded best documentary at a ceremony at Brooklyn's Steiner Studios.
The ceremony - which celebrates low-budget and art house films - is held annually by non-profit organisation the Independent Feature Project.
Elsewhere, Before The Devil Knows You're Dead - starring Ethan Hawke and Philip Seymour Hoffman, and Talk to Me, starring Don Cheadle, were joint winners in the Best Ensemble Cast category.
Juno actress Ellen Page won the Best Newcomer award; Great World of Sound director Craig Zobel won Breakthrough Director.
Guests at the starstudded bash included Martin Scorcese, Javier Bardem and New York mayor Michael Bloomberg.