Video: Pitt buys 'something dirty' for JolieĀ 

US actress Angelina Jolie talks to her partner US actor Brad Pitt on the red carpet prior to the German premiere of the movie World War Z in Berlin, Germany, Tuesday, June 4, 2013. (AP Photo/Ferdinand Ostrop)
US actress Angelina Jolie talks to her partner US actor Brad Pitt on the red carpet prior to the German premiere of the movie World War Z in Berlin, Germany, Tuesday, June 4, 2013. (AP Photo/Ferdinand Ostrop)
Brad Pitt and Angelina Jolie celebrated part of her 38th birthday in true celebrity style -- at the Berlin premiere of his new film "World War Z." Asked what he got his A-List bride, Pitt grinned and promised "something dirty."

US actress Angelina Jolie talks to her partner US actor Brad Pitt on the red carpet prior to the German premiere of the movie World War Z in Berlin, Germany, Tuesday, June 4, 2013.