Jim Carrey and Renée Zellweger fell for each other on set of their film "Me, Myself, and Irene," and enjoyed a romance that Carrey calls his greatest love.

Carrey announced the birth of his grandson on Twitter back in 2010 with a photo of the then-newborn, along with the caption, "Jackson Riley Santana, My Grandson, Born today! This is what 7lbs.11oz. of ...