Renee Zellweger through the years

Published On: Jan 20 2012 03:45:07 PM EST   Updated On: Apr 25 2014 10:24:12 AM EDT
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.