“Conclave,” a thriller about the election of a new pope, triumphed at the 31st Screen Actors Guild Awards on Sunday, winning the top prize for best motion picture cast. “Shōgun,” an epic look at feudal Japan, and “Only Murders in the Building,” a mystery satire, won the TV ensemble prizes in the drama and comedy …

The SAG-winning actress was joined by her son Charles Bernard Foster on the red carpet Sunday for a rare mother-son outing. Foster, who is nominated for best actress in a television movie or limited series, cut a glamorous figure in a tasseled burgundy dress, while Charles kept it classic in a black-and-white tuxedo.