Other winners included Demi Moore and Timothée Chalamet, both of whom head into next week's Academy Awards with a boost of momentum. British actor Ralph Fiennes accepted the prize for Conclave, which is voted on by fellow actors,

The cast of “Conclave” has accepted congratulations from generations of big stars backstage at the Screen Actors Guild Awards. The group that included Ralph Fiennes, Isabella Rossellini and John Lithgow won the big prize of best ensemble at the Sunday night show in Los Angeles.

Will there be an Oscars upset? The best actor category certainly seems to be the tightest race in a long time, with Timothee Chalamet taking the SAG Awards prize just a week after Adrien Brody's BAFTA win.