Last Night's Parties: Olivia Wilde, Ryan Reynolds Dazzle At "The Change-Up" Premiere; Hollywood Attends NBC All-Star Party

Olivia Wilde, Sandra Bullock, and Ryan Reynolds congregate in Westwood for an overdose of beautiful people at The Change-Up premiere and after party; Elle MacPherson, Nick Lachey, Sara Bareilles, Christina Applegate and a smattering of other stars kick off the NBC Press Tour with a party at the SLS Hotel in Beverly Hills—get all the details you need to know on Monday's hottest star-studded events in today's edition of Last Night's Parties. [Leslie Mann, Olivia Wilde, Jason Bateman, Ryan Reynolds photo via]

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Premiere Of Universal Pictures' The Change-Up

Where: Regency Village Theatre Who Was There: Adam Fogelson, Amanda Anka, David Dobkin, Donna Langley, Jason Bateman, John Lucas, Jonah Hill, Judd Apatow, Leslie Mann, Mircea Monroe, Neal H. Moritz, Olivia Wilde, Perrey Reeves, Ron Meyer, Ryan Reynolds, Sandra Bullock, Scott Moore, Sean Burke, Steve Burke. Other Details: Hollywood's most familiar faces looked extra chic at the premiere of Ryan Reynolds' newest film, The Change-Up last night in Westwood. The body-swapping movie is somewhat of a Freaky Friday for the boys in which Reynolds is forced to live the family life of his married older brother and (gasp) stop his womanizing ways. Co-star Jason Bateman got in a little bro time with Ryan where they hugged it out on the red carpet and apparently Reynolds is quoted as being "back on the dating scene" after his finalized divorce from Scarlett Johansson back in July. Don't worry Ryan, we're here to console you should you need anyone to fill the void. And onto the ladies, Sandra Bullock looked like her usual knockout self in a black Lanvin jumpsuit which was a close competition for Olivia Wilde's Antonio Berardi red hot cocktail dress. [Jason Bateman, Ryan Reynolds photo via]

NBC Universal Press Tour All Star Party

Where: The Bazaar at the SLS Hotel Who Was There: Aidan Quinn, Alison Brie, Amber Heard, Andy Cohen, Anna Kournikova, Ben Folds, Bitsie Tulloch, Brian F. O'Byrne, Camille Grammer, Candace Bailey, Chevy Chase, Chris Pratt, Christina Applegate, Christopher McDonald, Creed Bratton, Danny Pudi, David Krumholtz, Dax Shepard, Donald Glover, Ed Helms, Elle Macpherson, Eva Marcille, Gail Simmons, Gillian Jacobs, Hank Azaria, Jeff Lewis, Jenna Dewan, Jenni Pulos, Joel McHale, John Goodman, John Krasinski, Karen Olivo, Kathy Griffin, Kelly Monaco, Ken Jeong, Kim Lee, Kim Richards, Kyle Richards, Lisa Vanderpump, Mae Whitman, Max Burkholder, Nadia Bjorlin, Natasha Leggero, Nick Lachey, Nick Offerman, Nicole Brown, Oscar Nunez, Patti Stanger, Rashida Jones, Reggie Lee, Sean Hayes, Sharon Osbourne, Shaun Robinson, Shawn Stockman, Suzanne Rogers, Tamera Mowry, Taylor Armstrong, Tia Mowry, Whitney Cummings, Yvette Nicole Brown, Yvonne Strahovski, Zachary Levi, Zoe Lister. Other Details: This biannual event sponsored by the major networks brings out Hollywood's best to drum up buzz for their upcoming shows in front of the Television Critics Association in L.A. Of course, no industry event is complete without an over-the-top balls-out after party bonanza. Stars from hit shows such as "The Office", "Chuck", "Community", "Parks and Recreation" and many more were also in attendance, including John Krasinski, Joel McHale, Sharon Osbourne and Christina Applegate. Apparently reality stars were considered "important" enough to attend as well, with "Millionaire Matchmaker's" Patti Stanger and the stars of the pinnacle of quality TV programming, "The Real Housewives of Beverly Hills" milking every press junket possible. [Ken Jeong, Chevy Chase photo via]