From Leonardo DiCaprio to Clint Eastwood and Dustin Hoffman, some of Hollywood's most famous and acclaimed stars were honored Tuesday night at the Palm Springs International Film Festival's 2009 Awards Gala -- and ET's own Mary Hart was right in the middle of it all!

Mary, in her sixth year as emcee, celebrated the Southern California black-tie event's 20th anniversary by helping to bestow such awards as the Rising Star Award to Dakota Fanning; the Desert Palm Achievement Award (Actor and Actress) to Sean Penn and Anne Hathaway; the Ensemble Performance Award to the cast of 'Revolutionary Road'; and the Career Achievement Award to 'Gran Torino' and 'Changeling' actor/filmmaker Eastwood.

Other stars honored included 'Doubt' star Amy Adams, 'Frost/Nixon' director Ron Howard, 'Revolutionary Road' star Kathy Bates and 'Milk' director Gus Van Sant.

Stay tuned to ET for all the highlights on the red carpet, on the podium and backstage at the Palm Springs International Film Festival's 2009 Awards Gala!