"Basterds" earned nods for its cast and supporting stars Christoph Waltz and Diane Kruger. "Precious" was also nominated for outstanding performance by a film cast, along with nods for star Gabourey Sidibe and supporting actress Mo'Nique. "Up in the Air" collected nominations for star George Clooney and supporting actresses Vera Farmiga and Anna Kendrick.
Other films competing for best cast - SAG's equivalent of a best-picture prize - include "The Hurt Locker," "An Education" and "Nine," which also earned a nod for supporting actress Penelope Cruz.
"Dexter" and "The Closer" are up for best performance by a cast in a drama series, along with "Mad Men," "The Good Wife" and "True Blood."
Michael C. Hall, who plays Dexter, is nominated for best actor and the show's stunt team is up for outstanding performance by a stunt ensemble on TV. "The Closer" earned nods for its stunt team and star Kyra Sedgwick.
"30 Rock" collected nominations for its cast and stars Tina Fey and Alec Baldwin. Other comedies up for cast honors are "Curb Your Enthusiasm," "Modern Family," "Glee" and "The Office."
The actors union will present 13 awards during the two-hour dinner-party ceremony: Eight in television, five in film and a lifetime achievement award to 88-year-old Betty White.
"Our show is so special compared to other awards shows," said SAG Awards executive producer and director Jeff Margolis. "The fact that it is a show for actors, and it's actors voting for actors for doing good work. It's just different from the other shows, so we take great pride in keeping it different and special."