Paul Thomas Anderson's oil saga There Will Be Blood, which was the clear favourite with the Los Angeles Film Critics Association's at the weekend, earned two awards as Daniel Day-Lewis was named best actor and Robert Elswit took best cinematography honours.
Sarah Polley's directorial debut Away From Her earned Julie Christie the best actress trophy and the first film award for Polley.
Amy Ryan was named best supporting actress for Gone Baby Gone.
Florian Henckel von Donnersmarck's The Lives Of Others won best foreign film, Vincent Paronnaud and Marjane Satrapi's Persepolis earned best animated feature and Charles Ferguson's No End In Sight took documentary honours.
Sidney Lumet, who most recently directed the thriller Before The Devil Knows You're Dead, was chosen for the Lifetime Achievement award and Charles Burnett won the Special Critics' Award for Killer Of Sheep.
Complete list of 2007 awards:
Best Picture No Country for Old Men
Best Foreign Film The Lives of Others
Best Documentary No End in Sight
Best Animated Film Persepolis
Best First Film Sarah Polley, Away from Her
Best Director Joel and Ethan Coen, No Country for Old Men
Best Actor Daniel Day Lewis, There Will Be Blood
Best Actress Julie Christie, Away from Her
Best Supporting Actor Javier Bardem, No Country for Old Men
Best Supporting Actress Amy Ryan, Gone Baby Gone
Best Screenplay Joel and Ethan Coen, No Country for Old Men
Best Cinematographer Robert Elswit, There Will Be Blood
Lifetime Achievement Sidney Lumet
Special Critics' Award Charles Burnett, Killer of Sheep