Will Smith's marriage while filming the 1993 movie In a new excerpt from his upcoming memoir,53-year-old Smith opens up about falling in love with his co-star, Stockard Channing, while working on the project and still married to his first wife, Sheree Zampino.«Sheree and I were in the first few months of our marriage with a brand-new baby and for Sheree, I can imagine that this experience was unsettling to say the least,» Smith writes in an exclusive excerpt viamagazine.