Leighton Meester, Ciara and Eva Amurri steal the spotlight at the premiere of the new Adam Sandler flick  That's My Boy at the Regency Village Theatre; actors, directors and more honor Carol Burnett and Jim Gianopulos at the Geffen Playhouse's Annual "Backstage at the Geffen" Gala; America's number one 90-year-old lady Betty White receives a Madame Tussaud's wax figure—there was plenty of action even on a Monday in L.A. and we have all the details on who stepped out where in this edition of Last Night's Parties. Milo Ventimiglia, Adam Sandler, Eva Amurri, Ciara [via]