Forest Whitaker's portrayal of dictator Idi Amin in THE LAST KING OF SCOTLAND and DAME Helen Mirren's turn as THE QUEEN have earned the two stars top honours from the fifth annual Washington, DC Area Film Critics Association (WAFCA).
The US capital's top critics have also named 9/11 drama UNITED 93 as the Best Film at their fifth annual awards.
And Martin Scorsese has been honoured with the Best Director prize for his hit film THE DEPARTED.
The Washington critics also honoured DREAMGIRLS star JENNIFER HUDSON (Best Supporting Actress and Breakthrough Performance of the Year) and BLOOD DIAMOND's Djimon Hounsou (Best Supporting Actor)
HAPPY FEET claimed the critics' Animated Feature prize and PAN'S LABYRINTH was named Best Foreign Language Film.