Jean Dujardin beats George Clooney for best actor and Mary Tyler Moore receives lifetime achievement award at the 18th Annual Screen Actors Guild Awards; Sofia Vergara and Meryl Streep have fun with friends at the Weinstein Company and Dewar's post-SAG Awards cocktail party at the Chateau Marmont; Amber Heard dazzles fans on the red carpet as Kelsey Grammer hosts the 64th Annual Directors Guild of America Awards; Katy Perry and professional party girl Paris Hilton kick off the grand opening of 1 OAK Las Vegas;

Soho House hosts the first ever Australian Academy Of Cinema And Television Arts International Awards Ceremony with Nicole Kidman and Russell Crowe; Rihanna and Chris Tucker come out for Cirque Du Soleil's Michael Jackson "The Immortal" World Tour opening night—There were definitely plenty of events going on around Los Angeles this weekend and we have your coverage in this edition of Last Night's Parties!

[Clockwise from left: DGA photo via; Berenice Bejo, Michelle Williams , Sofia Vergara, Jesse Tyler Ferguson via]