Twins Charlotte and Samantha Ronson turn 32 today. David Duchovny is turning 49. Charlize Theron is 34. Author and radio personality Garrison Keillor is 67. Conservative political commentator Alan Keyes turns 59. Wayne Knight, the actor best known for playing Newman on Seinfeld, is turning 54. And Jimmy Wales, the co-founder of Wikipedia, is 43 today—at least according to his Wikipedia page. A handful of weekend birthdays—including that of Michael Kors, Chris Cuomo and Dustin Hoffman—follow below.

• Tom Cruise says he wasn't replaced by Angelina Jolie in Edward A. Salt: she was only offered the role after he turned it down. And he also claims he's the one who bowed out of starring in the next Mission Impossible flick. Meanwhile, his producing partner Paula Wagner has stepped down from her job as CEO of United Artists. [MSNBC, R&M, E!]

Celebrating birthdays today: Real estate broker Deborah Grubman—who also happens to be the wife of Allen and stepmom of Lizzie—turns 56. Party planner extraordinaire David Monn is 45. Designer John Varvatos turns 54. Dustin Hoffman is 71. Two former boy band-ers, Drew Lachey and JC Chasez, both turn 32 today. Tennis star Roger Federer is 27. And Robin Quivers is 56. Saturday is the big day for Chris Cuomo (left) who will be celebrating his 37th. Michael Kors will be turning 49. Allure's Linda Wells will be 50. And real estate broker Larry Kaiser and designer Peter Marino will be a year older on Saturday, too. On Sunday: Fashion icon Betsey Johnson will be 66, actress Angie Harmon will be 36, and real estate developer Harry Macklowe will turn 71.

Monn runs one of the city's leading event planning companies and enjoys the distinction of being one of Anna Wintour's least favorite people in town.