American Hustle has won the Screen Actors Guild award for outstanding cast, boosting its already strong Academy Awards prospects.
The other nominees were 12 Years a Slave, Dallas Buyers Club, August: Osage County and Lee Daniels's The Butler.
Bradley Cooper spoke on behalf of the ensemble, which also includes Amy Adams, Jennifer Lawrence and Christian Bale.
Cooper hailed director David O Russell as "the epitome of the actor's director.
Here's a complete list of winners:
- Actor: Matthew McConaughey, Dallas Buyers Club.
- Actress: Cate Blanchett, Blue Jasmine.
- Supporting actor: Jared Leto, Dallas Buyers Club.
- Supporting actress: Lupita Nyong'o, 12 Years a Slave.
- Cast: American Hustle.
- Stunt ensemble: Lone Survivor.
- Actor in a comedy series: Ty Burrell, Modern Family.
- Actress in a comedy series: Julia Louis-Dreyfus, Veep.
- Comedy series cast: Modern Family.
- Actor in a movie or miniseries: Michael Douglas, Behind the Candelabra.
- Actress in a movie or miniseries: Helen Mirren, Phil Spector.
- Drama series cast: Breaking Bad.
- Actor in a drama series: Bryan Cranston, Breaking Bad.
- Actress in a drama series: Maggie Smith, Downton Abbey.
- Stunt ensemble: Game of Thrones.