Julia Roberts, Benicio Del Toro and the cast of the drug drama

Traffic were the big winners at the 7th Annual Screen Actors Guild Awards, held last night in Los Angeles. Roberts, a shoo-in to pick up an Oscar on March 25, won best actress honors for Erin Brockovich. During her acceptance speech, the choked-up thesp admitted, "I am a fraud to stand here alone because so many people make me look like I know what I am doing." Del Toro was named best actor for Traffic, and that film's cast was awarded the coveted outstanding ensemble trophy. Supporting kudos went to Albert Finney (Erin Brockovich) and Judi Dench (Chocolat). On the TV front, NBC's The West Wing swept the drama categories, winning best cast, best actress (Allison Janney) and best actor (Martin Sheen). The Peacock comedy Will & Grace won outstanding comedy ensemble and Robert Downey Jr. and Sarah Jessica Parker were awarded top individual comedy acting honors for their respective roles in Ally McBeal and Sex and the City. For all the backstage scoop from the SAG Awards, check out tomorrow's Insider.