Katie Holmes looks white hot while promoting her new film Jack and Jill in Mexico

By DAILY MAIL REPORTERNew flick: Katie Holmes looked stunning in a white dress as she attended a press event in Cancun, Mexico to promote her new movie Jack and JillKatie Holmes appears to have discovered the fountain of youth.While promoting her new Happy Madison comedy Jack and Jill in Cancun, Mexico today, she looked more like her Dawson's Creek character, Joey Potter, than a married mother.