Slumdog Oscar favourite after win

Slumdog Millionaire follows a young Indian's life in contemporary Mumbai

Danny Boyle has been named best director by the Directors Guild of America for Slumdog Millionaire - a key indicator of Oscar success.

Only six times in the 60-year history of the awards has the winner failed to take an Oscar for best director.

The movie, about a Mumbai slum-dweller who takes part in a game show, has now won prizes at four major awards.

Boyle beat Frost/Nixon director Ron Howard as well as The Curious Case of Benjamin Button's David Fincher.

He also overcame competition from Gus Van Sant for Milk and The Dark Knight's director Christopher Nolan.

Slumdog Millionaire's cast won the ensemble prize at last month's Screen Actors Guild awards, and took four Golden Globes as well as securing success at the Producers Guild of America ceremony.

It has 10 nominations for the Academy Awards, to be held on 22 February.

Accepting his honour at the Los Angeles ceremony, Boyle noted the movie's own rags-to-riches story.

Danny Boyle is now hot favourite to win best director at the Oscars

It almost went straight onto DVD after Warner Brothers closed down the arthouse label on which it was to be released.

But Fox Searchlight stepped in with a distribution deal.

Boyle, 52, said: "I should start by curiously thanking Warner Bros for actually having the grace to do the right thing, when I think it would have been a lot easier to do the wrong thing, and pass the film on to Fox Searchlight, who are an extraordinary bunch of people."

The award was presented by directors Joel and Ethan Coen, who won the same prize a year ago for No Country For Old Men.

Boyle joked backstage: "To step into the shoes of people like the Coen brothers, it's phenomenal. I have stolen from them all my career, in a naked and appalling way."

Other winners included Ari Folman, who took the documentary award for Waltz With Bashir - which is up for best foreign language film at the Oscars.

In the television awards, Paul Feig won the comedy prize for an episode of the US version of The Office, while Dan Attias took the drama prize for an instalment of the final series of The Wire.