The cast of "American Hustle" took home the Screen Actors Guild's top honor Saturday night, pushing David O. Russell's con-man tale further ahead in what is proving to be a tight Oscar race.

"American Hustle," which collected 10 Oscar nominations Thursday morning, beat out the casts of "12 Years a Slave," "August: Osage County," "Dallas Buyers Club" and "Lee Daniels' The Butler" for the SAG Award.

SAG Awards 2014: Full coverage | Complete list

The SAG category of cast in a motion picture is often seen as a reliable predictor for the Academy Award best picture prize because many SAG members are members of the actors branch of the Academy of Motion Picture Arts and Sciences, the largest voting bloc in the organization.

A drama set in the 1970s and early '80s, "American Hustle" stars Christian Bale and Amy Adams as a couple of con artists forced by an FBI agent (Bradley Cooper) to participate in an elaborate sting to catch corrupt politicians. Jennifer Lawrence plays Bale's character's unpredictable wife.

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LIST: Complete list of Screen Actors Guild award nominees