Morgan Freeman took the best supporting actor award Saturday for his role as Swank's gym manager in Clint Eastwood's "Million Dollar Baby", said hollywoodreporter.com.
Cate Blanchett picked up the best supporting actress trophy for playing Katharine Hepburn in Martin Scorsese's "The Aviator".
The cast of director Alexander Payne's bittersweet comedy "Sideways" won the award for best ensemble.
Geoffrey Rush ("The Life and Death of Peter Sellers") and Glenn Close ("The Lion in Winter") won trophies for best actor and actress in a mini-series or TV movie.
Jerry Orbach of "Law and Order" and Jennifer Garner ("Alias") won trophies for best performances in a drama series.
Tony Shalhoub ("Monk") won for best actor in a comedy while Teri Hatcher ("Desperate Housewives") took the award for best actress in a comedy.
The cast of "CSI: Crime Scene Investigation" won the ensemble award for best drama and that of "Desperate Housewives" won as best comedy series cast.
The SAG Life Achievement Award went to actor James Garner, the star of films such as "The Great Escape" (1963), "Maverick" (1994) and "The Notebook" (2004).