The two leading Oscar nominees - "Roma" and "The Favourite" - were bypassed by the actors guild for a field that also includes "Crazy Rich Asians, " "Bohemian Rhapsody" and "A Star Is Born, " which led all films with four nominations. Pictured: The Actor statue is set-up at The 23rd Annual SAG Awards Behind The Scenes Day at The Shrine Auditorium on January 28, 2017 in Los Angeles.
Glenn Close was honored with best film actress for playing a devoted spouse in "The Wife".
Adding to his Golden Globe win, the 37-year-old took to the stage at the SAG awards to accept his prize and once again paid tribute to Freddie Mercury. She called the SAGs "the greatest honour an actor can receive this weekend".
SAG-AFTRA, Hollywood's largest actors union with 160,000 members, also will honor the year's best film performances.
The SAG Awards are one of the most reliable bellwethers of the Academy Awards, but several of this year's top Oscar contenders failed to land a best ensemble nomination.
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Chicago, North Dakota, Minnesota, New York, Philadelphia, and more major cities are told to anticipate the huge temperature drop. Madison, Wis., set a daily record low of 23 degrees below zero on early Saturday - the coldest morning since February 3, 1996.
In the TV categories, Sandra Oh's much-lauded performance in Killing Eve netted her the award for best female actor in a drama series, while Jason Bateman received the corresponding award for a male performer for his performance in the money laundering family drama, Ozark.
The Amazon comedy series The Marvelous Mrs. Maisel took a clean sweep of the comedy categories, winning outstanding ensemble, and outstanding actor and actress for Tony Shalhoub and Rachel Brosnahan.
Other TV winners included Patricia Arquette for Escape at Dannemora and Darren Criss for The Assassination of Gianni Versace.
This is Us won best ensemble cast for a television drama. Throughout his career Alda has won six Emmy awards, six Golden Globes, been inducted into the Television Hall of Fame and undertaken extensive charity work.
"It may never, ever have been more urgent to see the world through another person's eyes", Alda said, noting the divisive present political landscape. "Actors can help, a little, just by doing what we do".
SAG's film awards are closely watched because actors form the largest voting group in the Academy of Motion Picture Arts and Sciences, the organization that hands out the Oscars next month.