Renee Zellweger through the years

POSTED: 3:32 AM PST January 18, 2012    UPDATED: 11:00 PM PDT April 24, 2013 
Renee Zellweger at 2012 MMOA benefit

Oscar-winner Renee Zellweger, who celebrates her 44th birthday on April 25, has become one of Hollywood's mainstays over the years. Let's take a look back at her career so far.