Martin Scorsese finally won his long awaited best director Oscar for The Departed, which also won best picture for British producer Graham King.

As Scorsese accepted the award from presenter Steven Spielberg, he joked: “Could you doublecheck the envelope?”

Scorsese has previously been nominated for The Aviator, Gangs of New York, Goodfellas, The Last Temptation Of Christ and Raging Bull.

Backstage, he added: “It’s an overwhelming moment, I’m used to not winning.”

North London-born Graham King accepted the best picture Oscar for his work as producer on The Departed.

It was an emotional night for Jennifer Hudson who scooped best supporting actress for her debut role in Dreamgirls.

In a tearful speech, the stunned young star said: “Oh my God. I have to just take this moment in. I can’t believe it. I didn’t think I was going to win. Look what God can do!”

She went on: “If my grandmother could see me now… She was my biggest inspiration for everything because she was a singer and she had the passion for it but she never had the chance.”

And she finished by telling the audience: “Thank you for helping me keep the faith, even when I didn’t believe.”

Screen veteran Alan Arkin, whose comic turn as a heroin-addicted grandfather has already won several awards, picked up the best supporting actor statue, beating Eddie Murphy in a shock result.

He said he was ‘deeply moved’ by the reception Little Miss Sunshine has received.