As everyone in Hollywood knows, the awards ceremony itself is just the tip of the Oscar iceberg. The week opens with Tuesday’s party for For magazine (hosted by Tatiana Von Furstenberg, Amy Fleetwood, Savannah Buffett, Liz Goldwyn and Karen Kimmel). On Wednesday, Tracey Ross toasts designer Zac Posen at her boutique, Tom Ford hosts a reception at Gucci for Greybull Press’s new “The Photographs of Ron Galella,” and WWD and A Diamond is Forever host the White Hot Diamonds party at the White House in Hancock Park. On Thursday, Julian Schnabel unveils his Big Girl Paintings at the Gagosain Gallery in Beverly Hills with a private dinner to follow, and GM presents Ten, a 10-designer runway show featuring celebrity models Minnie Driver, Kate Beckinsale, Rachel Weisz, Shiva Rose McDermott and Rose McGowan at the Hollywood Palladium. Friday night, Ed Limato hosts his annual pre-Oscar bash at home and Vanity Fair and the Entertainment Industry Foundation host its “Night in White” party at the Paramour Mansion. Saturday, Barry Diller and Diane Von Furstenberg throw their annual brunch, the indie crowd hits the beach for the Independent Spirit Awards, Halle Berry hosts a “Monster’s Ball” party at Mirabelle restaurant and Miramax holds its Oscar skit party at an as-yet undisclosed location.