Renee Zellweger through the years

POSTED: 12:45 PM PST Jan 20, 2012    UPDATED: 07:24 AM PDT Apr 25, 2014 
Renee Zellweger at 2012 MMOA benefit

Oscar-winner Renee Zellweger, who celebrates her 45th 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.