This year's best picture Oscar winner Crash has pulled off one of the biggest upsets in Academy Awards history by beating runaway favourite Brokeback Mountain.

The look on Jack Nicholson's face said it all.

Drafted in to announce this year's best picture recipient, the three-time Oscar winner looked as surprised as anyone when he declared Crash had landed the evening's most coveted award.

Not since Shakespeare in Love beat Saving Private Ryan in 1999 has there been an upset to match it.

But the signs had been there for those who were looking for them.

Paul Haggis' ensemble race drama won the main prize at the Screen Actors Guild - its first significant victory over Ang Lee's western.

Read full story from BBC News Entertainment.