Debra Granik's "Winter's Bone," a gritty drama about an Ozark Mountain teenager who puts herself in danger in her desperate search for her meth-maker father, was named best film of 2010 at the 20th-anniversary Gotham Film Awards on Monday evening in New York.

The Grand Jury Prize winner at Sundance in January, "Winter's Bone" also won best ensemble performance for Jennifer Lawrence, John Hawkes, Dale Dickey, Lauren Sweetser, Garret Dillahunt and Devin Breznahan at the ceremony hosted by Stanley Tucci and Patricia Clarkson and held at the restaurant Cipriani Wall Street.

Best documentary honors went to Laura Poitras' "The Oath." Earlier in the day, "The Oath" received the International Documentary Assn's 2010 IDA  Humanitas Award. Breakthrough director award went to Kevin Asch, the writer-director of "Holy Rollers," about two rabbinical students who become drug dealers, and breakthrough actor was given to Ronald Bronstein of "Daddy Longlegs."

The Best Film Not Playing at a Theater Near You honors went to Mike Ott's "Little Rock."Davis Guggenheim's documentary "Waiting for Superman" received the Festival Genius Audience award, which was voted on by filmgoers online. Besides the competitive awards, career tributes were given to Oscar-winning actors Robert Duvall and Hilary Swank, director Darren Aronofsky and Focus Features Chief Executive James Shamus.

The Gotham Independent Film Awards are presented by the Independent Filmmaker Project, the nation's oldest and largest organization of independent filmmakers. Last year's big Gotham winner, "The Hurt Locker," went on to the win the Oscar for best film, director and screeenplay. Film Independent will announce its nominees for the 26th annual Spirit Awards on Tuesday morning.